Evaluate 4a + 7b + 3a – 2b for a = 4 and b = 3.
48
43
57
41

What is the lcm of 16 and 40 ? 24 and 40 ?

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.