Find the value x such that the data set has the given mean. 101,119,104,111,109,x mean 113
X=?

It is a percent with money involved too divide and you should have your answer

Use pythagorean’s theorem and find the missing side lengths of the two smaller triangles and add them together
13^2 - 12^2 = 5
15^2 - 12^2 = 9
5+9 = 14
14 is the length of each side of the square
14^2 + 14^2 = 19.8
19.8 is the diagonal length of the inside if the square