A plane descends from a higher altitude to a lower altitude at a rate of 100 feet per second. Which equation models the change in altitude after 15 seconds? A. (15)(100) = 1500 feet
B. (15)(-100) = -1500 feet
C. (-15)(-100) = 1500 feet
D. (-15)(100) = -115 feet

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

Is a square always, sometimes, or never a parallelogram