An auto repair bill is $146 for parts and $45 for each hour of labor. If h is the the number of hours of labor, express the amount of the repair bill in terms of the number of hours of labor.

The price of a coat increased from $78 to $92. what is the price increase percentage?

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take