A. 9. -7 + x = 9
A = 13.
b. -7 + 13 = -7 - 7 + 6.
a. 10. -10 + x = -2
A = 8
b. -10 + 8 = -2
Ellipse area = PI * a * b
ellipse area = 3.14 * 8 * 7
ellipse area = 175.84
Answer:
19. 5x²y⁷
20. a³b²c⁷
21. 4a³b⁴
Step-by-step explanation:
hope i helped! good luck in class!!
Do you want me to right it