Certain chemotherapy dosages depend on a​ patient's surface area. According to the Mosteller​ model, S=square root of hw and divide by 60​, where h is the​ patient's height in​ centimeters, w is the​ patient's weight in​ kilograms, and S is the approximation to the​ patient's surface area in square meters. Assume that​ Kim's height is a constant 163 ​cm, but she is losing weight. If she loses 6 kg per​ month, how fast is her surface area decreasing at the instant she weighs 72 ​kg?

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 large meteor is spotted by the Hubble Telescope passing the moon and on track to strike earth somewhere in the Pacific Ocean. The speed of the meteor is inversely related to the square of its distance from the center of the earth. If the meteor is clocked at 1.3 km/s when it is 43,000 kilometers out from the center of the earth,  what is the speed of the meteor at impact? Sea level is 6437 km from the center of the earth.  Round answer to the thousandths place.