Cheryl went on a 3-hour train ride. the train traveled at an average speed of 75 miles per hour. what was the total distance in miles that cheryl traveled?
a)225
b)215
c)25
d)72

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?