3 Select all equations that would result in infinite solutions.
A -8a + 10 = 2(5 - 4a)
B 4y + 9 = 4y - 7
C 3(x - 4) = 2x + 6
D 30 + 2 = 2 + 30

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.