Maggie's brother is 3 years younger than four times her age. The sum of their ages is 57. How old is Maggie? Maggie is years old.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?