297 cm is the total surface area of the square pyramid
Answer:
Amie should have multiplied 54 by 2/3
Step-by-step explanation:
The formula of the volume of a sphere is given by
, where r is the radius of the sphere.
to find the volume of the sphere, we must find 
We know that the formula of a cylinder of height h and radius r is given by

So 
We know that the sphere and the cylinder have the same height. Recall that the height of the sphere of radius r, is the diameter of a circle that passes through the heighest and lowest points of the sphere. Then, h=2r. This means that

From here, we know that
.
So the volume of the sphere is
.
So Amie should have multiplied 54 by 2/3.
Answer:
Step-by-step explanation:
60 hours for entire job
divided by 8 hours per day 7 1/2 days
52,458<52,485
52,485-52,458=27