Explain why each statement is true: 1.) 5 + 2 + 3 = 5 + (2 + 3)
2.) 9a = 11a - 2a
3.) 7a + 4 - 2a = 7a + -2a + 4
4.) 8a-(8a - 8) = 8

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.

Jose bought 20 shares of netflix at the close price of $117.98. in a few years, jose sells all of his shares at $128.34. how much money did jose make? a.) $192.50 b.) $207.20 c.) $212.50 d.) $224.60

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?