In the term $-6a^3$, which number is the coefficient and which is the exponent?

Compute $(3x^{2}y-2xy+5)+(-x^{2}y+4xy-3)$.

Which pair of terms is a pair of like terms?

Simplify $(4x^2+6x)+(-x^2+2x)$ and factor the result by pulling out the greatest common factor.

Simplify $4x-(3x-2)$. A student computed $4x-3x-2$ and concluded the answer is $x-2$. Evaluate the student's work and pick the correct conclusion.