How do you solve this problem

4(3-6a)=36

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

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.

Solve the formula ax+ by = c for x.