The product of a number and its multiplicative inverse is 1.
I can not the see the text
X+16/x=4. x^2+16-4x=0. x=8+-^17
Having them play against the best players already on the team and seeing who holds up best.
To be a triangle, any two of the side lengths added together must be greater than the third length.
9+15 > 9
9+9 > 15
Therefore, yes, the design can be made.