Answer:
Step-by-step explanation:
21 feet below is written as -21
9 feet up is written as +9
So we have -21 + 9 = -12 or 12 feet below sea level
The answer is graph number 2
Answer:
The radius would be 4.8
Step-by-step explanation:
The circumerfence of a circle can be found use the equation C=2r. So since we are given the circumerce we need to rearrange the eqaution to it looks like =r. when we do this out we find that the radius equals 4.8.