Answer:
-20 feet
Reasoning:
When your going down when your talking about water the answer is negative.But when your going up the answer will be positive
1) u > 4
2) 7 < u
3) u < 4
4) 7 > u
Step-by-step explanation:
1) subtract 6 - 2
2) add 3 + 4
3) subtract 4 on both sides (8-4)
4) subtract 9 - 2
2x2x7
