Answer:
A.
Step-by-step explanation:
It's the first one. The angles are supplementary not complementary.
We can use the formula y2-y1/x2-x1 to find the answer. Therefore, we have: 12-4/ -6-(-2). That gets us 8/-6+2 = 8/-4= -1/2. The answer is 3.
Answer:
x<15
Step-by-step explanation:
-(x - 1) + 20 <-3(x - 3)
-x + 1 + 20 <-3x + 9
-x + 21 < -3 + 9
-x < -3 + 9 - 21
-x÷ -1 < -15 ÷ -1
x > 15
