Jeff has $20 he spent 1/8 of his money on lunch and 2/5 of his money at the movies. how much money does he have left?

The circumference of a circle is 5 pi cm. what is the area of the circle?

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

Find the actual dimensions of the box. the side length are in meters and integers. the surface area of the box is 104 m2 and volume of the box is 60 m3.