How to divide 80 into the given fractions

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

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.

[tex]5 \times1 \frac{12}{13} [/tex] me