You just bought a new car for $22,000. Assume that the value of your new car depreciates at a constant 12% per year. 1) The decay rate is 2) The decay factor is 3) The equation of the function that represents the value, V(t), of the car in dollars t years from now is V(t)= || (Write an expression that completes the function's equation.)

The half-life of radioactive actinium ( 227AC ) is 21.77 years. What percent of a present amount of radioactive actinium will remain after 19 years?

An investment account was opened with aninitial deposit of 9,600 and earns 7.4 interest,compounded continuously. How much will theaccount be worth after 15 years?

Suppose that $12,000 is invested in a saving account paying 5.6% interest per year. (a)Write the formula for the amount in the account after t years if interest is compounded monthly. (b)Find the amount in the after 3 years if interest is compounded daily. (c)How long will it take for the amount in the account to grow to $20,000 if interest iscompounded continuously?