jody has already hiked 4 kilometers. the trail is 12 kilometers long. she can hike 2.5 kilometers per hour. which function will help jody figure out how many more hours, h, she needs to hike

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.