Answer:
1 71years
Step-by-step explanation:
x+10=81
x=71
2. x+8=49
x=41
3. x+11=100
x=99
The answer is x=13 because the equations equal each other
Answer:
C. 4 feet below
Step-by-step explanation:
A crew member on a boat releases a camera 2 feet above the surface of a lake. That is +2 feet
The camera falls 6 feet. -6
+2+(-6)
2-6
-4
Below 4 feet