Which measurements of two similar triangles are the same?

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?