Which number sentence shows the associative property of addition? choose all that apply. 3z + 9p = 9p + 3z 3x(5 + 2) = 3x(5) + 3x(2) 3 + (2 + 8) = (3 + 2) + 8 (6 + 1) + 9 = 6 + (1 + 9)

Find the quotient. 50a2 – 98b2 -5a +7b

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.