a) The average arithmetic mean is calculated by adding all of the values and then dividing the sum by the total number of values.

Which is 200.3.
b) Assume that the new average mean is 201, then

Solve for x.

Divide by 2604 to solve for x.

So the height of the new player is 175 cm.
You want to isolate C, so the first step would to have it be positive. You would do this by adding C to both sides of the equation to cancel the C on one of the sides out like this:

. Then you want to cancel out the P, so you subtract it on both sides like this:

And that is your answer
It depends on how long there arms are I think
Volume prism= ½•a•c•h
=½•7•11•5
=½•385
=192.5cm³
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