William says that 15 years from now, his age will be 3 times his age 5 years ago. If x represents William’s present age, complete the following sentences. a)15 years
b)18 years
c)x − 15 = 3(x + 5)
d)x + 15 = 3(x − 5)

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright