The answer is: The surface area of the sphere.
The explanations for this exercise is shown below:
By definition, the surface area of a sphere is four times the area of a circle.
You have that the area of a circle is:
Where 
is the radius of the circle.
Therefore, to calculate the surface area of a sphere with radius , you only need to multiply the equation shown above by four, as following:
Its called the coefficient
A rectangle is the shape of the cross section that is formed
original height was 5" and it was enlarged to 30"
find the ratio by dividing 30 by 5
30 / 5 = 6
so ratio would be 1/6 meaning for every 1 inch of the original the new one is 6 inches
now you need to multiply the original width by 6 to find the new width
7" x 6 = 42"
new width = 42"
12 mins each
60 divided by 5 equals 12
