Answer:
4a. 13
4b. -4
Step-by-step explanation:
2x-6/5 = 4 (Muti each side by 5)
2x-6 = 20
2x = 26 (Divide each side by 2)
x = 13
7- 2x/4 = 9
-2x/4 = 2 (Muti each side by 4)
-2x = 8 (Divide each side by -2)
x = -4
Answer:just start at 7 and go out 2 up 1
Step-by-step explanation:
Edit:sorry ment -7


the dotted line. shadow under the line

solid line. shadow above the line
Answer in the attachment (graph C).
Answer:
-10x5 + 8x4 - 7x3 - 20x2 - x + 18
Step-by-step explanation: