Ray uses 1/4 of a gallon of gasoline to drive a distance of 5 1/2 miles. at this rate how many miles can he drive on 1 gallon of gas?

Acable car begins its trip by moving up a hill. as it moves up, it gains elevation at a constant rate of 50 feet/minute until it reaches the peak at 2,000 feet. then, as the car moves down to the hill’s base, its elevation drops at the same rate.

What is the value of x in the following equation? -3x-2=2x+8

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints