Simplify 4(5x - 6) - 4(2x + 1)

12x - 5
12x - 20
12x - 28

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.

Given abc find the values of x and y. in your final answer, include all of your calculations.