Answer:
Step-by-step explanation:
9. Correct, D
-3Y + 9X <= 12
3Y - 9X => -12
3Y => -12 + 9X
Y => -4 + 3X
10. D
11. D
12. Correct, B
13. Correct, E
14. A
15. B
516+497+501+528+476= 2518
2518/5= 503.6
round up to 504
Answer:
D. Both factors are negative, so the product will be positive.