Using the model, solve for x.

Leilani needs to collect at least 12 rocks for a science project. She already has collected 5 rocks. The inequality shown can be used to find n, the number of rocks Leilani still needs.

Dave is buying refreshments at the pool. After buying a smoothie for he and a friend for $6.45, Dave is left with $7.65. How much money did he begin with? Use the equation x − $6.45 = $7.65.

Solve 4x > 24, What are possible solutions for this inequality?

Fin the solution set for the following model

Using the model, solve for x.

David is 40 inches tall. He wants to ride a roller coaster that requires the rider to be at least 48 inches tall. What inequality can be used to determine how many inches David has to grow to ride the roller coaster?

Find the solution set for the following model.

What value of x makes the following equation true? x - 20 = 4

Which numbers make the inequality x < 19 true? Choose all numbers that apply.

Which graph represents the solution for the inequality d < 23

A symphony orchestra typically uses twice as many violins as cellos. If 36 violins are used, solve the equation 2x = 36 to find the number of cellos used.

Horace bought 84 pizzas for a school awards banquet. There will be 12 tables set up for the banquet, and Horace wants to divide the pizzas evenly between the tables. He thinks that each table will have 7 pizzas. Use the equation 84 ÷ p = 12