4x + y = -24
y + 2x = -8
How would I solve by substitution step by step?

On a architect's drawing of a house, 1 inche representa 1.5

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.