Factor -9z + 12
a; -3(2z + 4)
b: -9(z - 4)
c: -9(z + 12)
d: -3(3z - 4)

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000

Which expression is equivalent to (5x^7+7x^8) − (4x^4−2x^8)? a. 9x^8 + 5x^7−4x^4 b. 3x^8 + 7x^7 c. 12x^8 − 2x^4 d. 5x^8 + 5x^7 + 4x^4