What is the algebraic expression for: 1. 4 times a number cubed decreased by 72. 3 more than 5 times the number3. 15 less than a number squared4. the product of 5 and y added to 3

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.

Identify one charcteristic of exponential growth

Two airplanes start at the same place and travel in opposite directions, one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?