1. How would you classify the polynomial $8x^2 + 3x - 7$?
2. A polynomial with exactly two terms, such as $y^3 - 8$, is called a ___.
3. Which of the following expressions is a monomial?
4. The expression $12p^4 + 5q$ is a binomial because it has exactly ___ terms.
5. What is the correct classification for the expression $14x^2y$?
6. Subtract the polynomials: $(5x^3 + 3x^2 - 4x + 8) - (2x^3 - 4x - 3)$.
7. Mario's height in feet is given by $M(t) = 12t^2 - 24t + 34$, and Alfredo's height is $A(t) = -16t^2 + 32t + 6$. What is the difference in their heights after $1/2$ second? The difference is ___ feet.
8. Subtract $(4x^2 - 3x - 1)$ from $(-3x^2 + 4x - 2)$.
9. Evaluate $(2x + y - z) + (3x - 4y + 6z) - (5x - 9y - 3z)$ for $x = 2.8$, $y = -3.6$, and $z = 1.8$. The value is ___.
10. Simplify the expression $(4t^2 + 7) - (3t^2 - 5)$. The result is ___.