The two trapzoids in the figure are similar. what is the value of x

I'm being volume of cylinder with 13 in. radius and 30 in height answer choices in pic

Nellie is analyzing a quadratic function f(x) and a linear function g(x). will they intersect? f(x) g(x) graph of the function f of x equals one half times x squared, plus 2 x g(x) 1 5 2 10 3 15

Ineed to know how to write question one in mathematical terms