You want to solve 11% of what number is 22. explain how you could solve that but using a proportion

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?