Equation or expression

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. 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.

Select all of the following expressions that are equal to 2.5.