What is the classification of the pair of angels shown

Given that δabc is similar to δdef, which is a possible trigonometric ratio for ∠d? a) tan d = 24 30 b) tan d = 30 24 c) tan d = 18 24 d) tan d = 24 18

What are linear equations? could'ya explain too me, ? ! and how do you see what graph is a proportional relationship?

Multiply and simplify 2x^2 y^3 z^2 · 4xy^4 x^2