-2x + 6 + 4x = -12

Solve for x

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

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

Larry wants to buy some carpeting for his living room. the length of the room is 4 times the width and the total area of the room is 16 square meters. what is the length of the living room