Answer:
B or 31r-71
Step-by-step explanation:
First, use distributive property to expand the first term.
30r-66-(5-r)
Remove the parenthesis of the third term:
30r-66-5+r
Combine like terms
31r-71
Answer:
August
Step-by-step explanation:
Answer:
x=7
Step-by-step explanation:
1, Add 2 to both sides. This gives us 
2. Square both sides. This gives us 
3. Divide both sides by 7. This gives us 
Step-by-step explanation:
here
-11r ≥ 220
-11r/-11 ≥ 220/-11 (dividing both side with -11 to eliminate -11 )
r ≥-20