Answer Choices A. C = 10h + 5v
B. C = 40( h + v ) + 15
C. 40 + 15( h + v )
D. C = 40 + 10h + 5v

Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?