Which expression gives the distance between the points (0, -1) and
(1, -2)?

How far could you drive on 50 gallons of gas

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

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.