HELP PLEASE AND THANK YOU

Asphere has a diameter of 10 in. what is the volume of the sphere?

Which graph represents the function g(x) = |x + 4| + 2?

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.