The number of students enrolled at a college is 12,000 and grows 4% each year. Complete parts (a) through (e). a) The initial amount a is. b) The percent rate of change is 4%, so the growth factor b is 1+ c) To find the number of students enrolled after one year, you calculate 12,000 • d) Complete the equation y =| to find the number of students enrolled after x years. e) Use your equation to predict the number of students enrolled after 22 years. After 22 years, there will be students enrolled. (Round to the nearest whole number as needed.)

Find the slope ofthe line in Figure l.

Table 6 shows the year and the number ofpeople unemployed in a particular city for several years. Determine whether the trend appears linear. If so, and assuming the trend continues, in what year will the number of unemployed reach 5 people?

The resistance of a copper wire carrying an electrical current is directly proportional to its length and inversely proportional to its cross-sectional area. A copper wire with a diameter of 0.0126inch has a resistance of 64.9ohms per thousand feet. What length of 0.0201-inch-diameter copper wire will produce a resistance of 33.5ohms?

An investment earns 4% per year and is worth $10,000 after 7 years. PV =

Mrs Galicia started a savings account for her family and started it with an initial deposit of $1600. The account earns 3.75% interest compounded quarterly. a) Write an equation to represent the amount of money in the account as a function of time in years b) How much money will be present in the account in 5 years. Please show works

A 30-second commercial during Super Bowl XXXVII in 2003 cost advertisers 2.2 million. For the first Super Bowl in 1967, an advertiser could have purchased approximately 26.19 minutes of advertising time for the same amount of money. (a) Assuming that advertising cost is proportional to its length of time, find the cost of advertising, in dollars/second, during the 2003 Super Bowl. cost= dollars/second. (round to nearest cent and do not enter commas) (b) Assuming that advertising cost is proportional to its length of time, find the cost of advertising, in dollars/second, during the 1967 Super Bowl. cost = dollars/second. (round to nearest cent and do not enter commas) (c) How many times more expensive was Super Bowl advertising in 2003 than in 1967? times more expensive (round to nearest whole number)

​a) The cost of​ first-class postage stamp was 7¢in 1965 and 70¢ in 2010.This increase represents exponential growth. Write the function S for the cost of a stamp t years after 1965 ​(t=​0). ​b) What was the growth rate in the​ cost? ​c) Predict the cost of a​ first-class postage stamp in 2013​, 2016​,and 2019. ​d)       The Forever Stamp is always valid as​ first-class postage on standard envelopes weighing 1 ounce or​ less, regardless of any subsequent increases in the​ first-class rate. An advertising firm spent ​$7000 on 10,000 ​first-class postage stamps in 2009. Knowing it will need 10,000 ​first-class stamps in each of the years 2010​-2020​, it decides at the beginning of 2010 to try to save money by spending ​$7000 on 10,000 Forever​ Stamps, but also buying enough of the stamps to cover the years 2011 through 2020. Assuming there is a postage increase in each of the years 2013​, 2016​, and 2019 to the cost predicted in part​ (c), how much money will the firm save…

A $2500 investment earns 8% interest, compounded quarterly (4 times a year). a) Write an equation for the value of the investment as a function of time, V (t), witht in years. b) How long will it take for the investment to be worth $4000? c) Change the base of the power so its exponent is just "t".

The population of squirrels at the University of Waterloo campus experiences exponential growth during the summer and fall. Seriously.. those little buggers are everywhere. The population at the beginning of March break is 800, and they double every 19 days, according to the equation P = 800(2), where P is the population and t is the time in days. a) What will the population of squirrels be on Canada Day (83 days after the beginning of March break)?