Question

9. r/15 ≥ -3
R ≥ -45***
R ≥ -15
R ≥ 12
R ≥ 45

10. -8x > -64
x < 8***
x > 8
x < -72
x > 72

13. A baseball bat and 8 baseballs cost $163.25. The bat costs $106.45. What is the cost c of one baseball? (1 point)
163.25 – 8c = 106.45; $33.71
8c + 106.45 = 163.25; $7.10***
8c + 163.25 = 106.45; $7.10
8c – 106.45 = 163.25; $33.71

14. Jacob weighs 64 pounds. Together, he and his sister weigh eight pounds more than two times the weight of his sister. What is the weight, w, of Jacob’s sister? (1 point)
64 + w = 2w + 8; 56 pounds***
64 + w – 8 = 2w; 62 pounds
64 + w = 2w; 64 pounds
64 + w = 2w – 8; 72 pounds

15. Labrina received a $50 gift card to an online store. She wants to purchase some bracelets that cost $8 each. There will be a $10 overnight shipping fee. How many bracelets can she buy? (1 point)
4 bracelets
5 bracelets***
6 bracelets
7 bracelets

16.An airline requires carry-on luggage to weigh at most 40 pounds. Your suitcase currently weighs 10 pounds. How many pounds p are available for you to fill your suitcase with other items?
p - 10 ≤ 40; p ≤ 50
40 - p < 10; p < 30
p + 10 ≥ 40; p ≥ 30***
10 + p ≤ 40; p ≤ 30

Answer 1

NOT MORE
</= 30
You knew that

Answer 2

So would 16 be D? And are my others ok?

Answer 3

yes, yes

Answer 4

8pounds 4 ounces