Answer:
the area of the circle depends on the square of the radius. Because half of the circle is called radius. So multiplying the radius by two gives us the full circle
Answer:
9 over 0 = 9/0 also - 9
Step-by-step explanation:
In order to find the average you have to add up all the data values and then find the sum of the data values.

So on average he ran about 82.5 miles.
Answer: -16
Step-by-step explanation:
-3 is less than -2 so use the first one
Plug into equation
5(-3)-1
-15-1= -16