Answer:
80 answer is 80
Step-by-step explanation:
50+30 = 80 answer
Answer:
9 5/12
Step-by-step explanation:
2 2/3 + 6 3/4
find a common denomenator. For 3 and 4, it would be 12.
2 8/12 + 6 9/12
add
8 17/12
12 goes into 17 one time, with 5 left over
9 5/12
Answer:
B
Step-by-step explanation:

Answer:
Step-by-step explanation:
–10.5 < 3a ⇒ -3.5 < a ⇒ a > -3.5
- <u>no</u> as variable has positive coefficient
b/6 ≤ 7 ⇒ b ≤ 42
- <u>no</u> as variable has positive coefficient
–4.5c > 9 ⇒ c < - 2
- <u>yes </u>as variable has negative coefficient
–21/5 ≤ –5/2d ⇒ (-21/5)*(-2/5) ≥ d ⇒ d ≤ 42/25
- <u>yes</u> as variable has negative coefficient