7. Superman is in level flight 6 miles above the ground. His flight plan takes him directly over and past Avon High School. How fast is he flying when the distance between him and AHS is exactly 10 miles
and this distance is increasing at the rate of 40 mph?

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days