Angle abc and angle pqr are similar. find the missing side length.
first triangle has ? on the side top of left side triangle back is letter b, side 7, tip of triangle is letter c, the other side on the right is 5, and on the right side bottom is a.
second triangle has left side is 24, top left is q, left side is 42, tip is r, right side is 30, right bottom is p
(couldn't take a picture, you might have to draw the triangles.)