What is an equivalent expression to 49+14

How do you solve a question like this?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Consider the polynomials given below. p(x) = x4 + 3x3 + 2x2 – x + 2 q(x) = (x3 + 2x2 + 3)(x2 – 2) determine the operation that results in the simplified expression below. 35 + x4 – 573 - 3x2 + x - 8 a. p+q b. pq c.q-p d. p-q