Keshon's mother drives Keshon to his grandmother's house to visit. First she drives 60 minutes at a constant speed of 40 mph. Then they reach the highway. She speeds up and drives for another 30 minutes at a constant speed of 70 miles mph 1) How long did the trip take?

2) How far did Keshon and his mother drive together?

What is the graph of the absolute value equation ? y=|x|-5

The path traveled by a bottlenose dolphin as it jumps out of water is modeled by the equation y=-0.4+3x, where t is the height above water and x is the horizontal distance in feet. if a beam of light is shone upward at an angle modeled by the equation x+y=10, at what height from the waters surface will the beam of light hit the dolphin

In the expansion of (2m-3n)^9 one of the terms contains m^3. determine the exponent of n in this term