Correct each of the following errors by circling the error, describing what is wrong, entering what should be there instead, and entering the correct answer. 1) (3x2)(-2x4) = 3(-2)x2•4 = 6x8
2) 4a2 • 3a5 = (4 + 3)a2 + 5 = 7a7
3) x6 • x • x3 = x6+3 = x9
4) 34 • 23 = 64+3

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

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.

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