Six friends attend a matinee movie and spend $9 per ticket. They also purchase a small bag of popcorn, p, each. If the friends spend a total of $81, write an equation that describes the situation.

What should be done to solve the equation? x+14=21 add 14 to both sides of the equation. subtract 14 from the left side of the equation. add 14 to the left side and subtract 14 from the right side of the equation. subtract 14 from both sides of the equation.

Name the quadrilaterals that have four equal sides.

Use set builder notation to represent the following set: { -3, -2, -1, 0}