The solution to is either or . Which solution is correct? Explain how you know.

The school band director determined from past experience that if they charge dollars for a ticket to the concert, they can expect attendance of . The director used this model to figure out that the ticket price needs to be $8 or greater in order for at least 600 to attend. Do you agree with this claim? Explain your reasoning.

Which inequality is true when the value of is -3?

Represent the solution for each inequality on the number line.

Write three different equations that represent the tape diagram.

A baker wants to reduce the amount of sugar in his cake recipes. He decides to reduce the amount used in 1 cake by cup. He then uses cups of sugar to bake 6 cakes.

1. Describe how the tape diagram represents the story.
2. How much sugar was originally in each cake recipe?

One year ago, a tree was 4 feet 6 inches tall. Now the tree is 4 feet 10 inches tall. By what percentage did the tree’s height increase in the last year?