25% of 88 is the same as what percent of 22?
1) 12 1/2%
2)40%
3) 50%
4) 100%

99 points at a zoo, the leopard pen has a ring-shaped sidewalk around it. the outer edge of the sidewalk is a circle with a radius of 12 m. the inner edge of the sidewalk is a circle with a radius of 8 m. (1 point for showing all of your work) a. write and simplify an expression for the exact area of the sidewalk. (1 point for the answer) b. find the approximate area of the sidewalk. use 3.14 to approximate π. (1 point for the answer)

What is the product of the radical expression. (7-2square root) (8+2 square root)

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?