REAL ANSWERS ONLY!! 30 POINTS!

Solve the equation x/4 - 5= -8 -27 -12 -7 12

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

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.