Use the Distributive Property to write each expression as an equivalent algebraic expression. $(b + 4)12$

Simplify each expression. $4a + 3a$

The angle measures of a triangle are $(x-9)^{\circ}, x^{\circ},$ and $(2 x-5)^{\circ}$. Find the measures of the angles.

The length of a rectangle is $7x - 4$. The width of the rectangle is $5x + 1$. Which expression represents the difference between the length and the width of the rectangle? A $2x - 3$, B $2x + 3$, C $2x - 5$, D $2x + 5$.

Use the Distributive Property to write each expression as an equivalent algebraic expression. $3.7(r - 1)$

Explain how algebra tiles represent like terms and zero pairs.

The area of a high school basketball court is $(50x - 300)$ square feet. Factor $50x - 300$ to find possible dimensions of the basketball court.

Identify the terms, like terms, coefficients, and constants in each expression. $3m + 3n + 2p + 4r$

Identify the terms, like terms, coefficients, and constants in each expression. $2x + 3x + 4 + 4x$

Subtract. Use models if needed. $(-4x + 2) - (-2x + 1)$

Use the Distributive Property to write each expression as an equivalent numeric expression. Then evaluate the expression. $\frac{2}{5}(3+5)$

Find the GCF of each pair of monomials. $15y, 25$

Use the Distributive Property to write each expression as an equivalent numeric expression. Then evaluate the expression. $(-10 + 9)3$

Add. Use models if needed. $(-4x + 3) + (-5x + 2)$