Brock buys 6 cheap golf balls and 4 expensive ones for $12.50. dylan buys 4 cheap and 3 expensive golf balls for $9.00 .what are the prices of the two kinds of golf balls?

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.