p varies directly with the square root of q and inversely with the cube of r. What is the effect on p when q is quadrupled, and r is cut in half?

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25

Atourist boat is used for sightseeing in a nearby river. the boat travels 2.4 miles downstream and in the same amount of time, it travels 1.8 miles upstream. if the boat travels at an average speed of 21 miles per hour in the still water, find the current of the river.