1) + $12, since it is a profit
2) -1440 ft, since it is below the sea level
3) - 22°F, since it is below
4) + 31 yards, since it is a gain.
Answer:
10 (b+10)
Step-by-step explanation:
10b + 100
Factor out a 10
10 *b + 10*10
10 (b+10)
B.6 would be the right answer because thats the ratebin which it drops
9r=3r+6
Subtract 3r from both sides
6r=6
Divide both sides by 6
r=1
