Can Someone help me with this equation?

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

Which one is true about the hexagons ?

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?