You run 3 miles up a hill and 3 miles down a hill. you run 25% faster going down the hill than going up the hill. let r be your speed( in miles per hour) while running up the hill. write an expression that represents the amount of time you spend running on the hill.

What is the result of the following division?

Fatima plans to spend at least $15 and at most $20 dollars on sketch pads and pencils. if she buys 2 sketchpads, how many pemcils can she buy while staying in her price range? fatima can buy between and pencils. ? (type whole numbers. use ascending? order.)

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min