Remember that the formula for the surface area of a sphere is

. Substitute the given surface area to solve:

. Divide by 4 on both sides:

. Divide by pi on both sides:

. Square root on both sides to find the radius:
92% just divide the numerator by the denominator
Answer:
Step-by-step explanation:
Answer in picture
Answer:
c. If a vehicle's city mpg increases by 1 mile per gallon, its predicted highway miles per gallon will increase by 1.14 miles per gallon.
Step-by-step explanation:
The equation that predicts highway mpg based on city mpg is:

There is a positive relationship between city and highway mpg, which means that an increase in city mph results in an increase in highway mph. As for the magnitude of this increase, it is related to the slope of the equation which happens to be 1.14. This means that if a vehicle's city mpg increases by 1 mile per gallon, its predicted highway miles per gallon will increase by 1.14 miles per gallon.
The answer is alternative C.
5%
because 30/100 - 25/100 = 5/100