If ac is parallel to bd and m < 5 is decreased by 30 degrees how must m < 2 be changed to keep the lines parallel?

It must be decreased by 30 degrees

Step-by-step explanation:

Two parallel lines are those which have equal slopes (m). So, if ac is parallel to bd and the slope of one of them is decreased by 30 degrees, then the slope of the other line must also be decreased by 30 degrees.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.