How do i do this?? if i can get the 4 questions right, my grade will go up a bit

It should be 60 or 45 degrees. Pretty sure its 45

Step-by-step explanation:

I did this in 10th grade and we had a 30 60 and 90 degree rule. and a 45 45 90 degree rule.

Lemme know if I helped :)

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right