A bag contains 9 blue marbles and 36 green marbles. If a representative sample contains 3 blue marbles, then how many green marbles would you expect it to contain? Explain.

How do i do this using elimination 2x+3y=12 x-y=6

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

Ten times the square of a non-zero number is eqaul to ninety times the number