Can someone help me?

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

The statements below can be used to prove that the triangles are similar. ? △abc ~ △xyz by the sss similarity theorem. which mathematical statement is missing? ∠b ≅ ∠y ∠b ≅ ∠z

What is 10+10+20 about the origin the square root of a triangle.