Here are four expressions that have the value :

Write five expressions: a sum, a difference, a product, a quotient, and one that involves at least two operations that have the value .

Find the value of each expression.

The price for package of highlighters is $3.25, but it costs $3.51 with tax. What is the sales tax rate?

Two students are both working on the same problem: A box of laundry soap has 25% more soap in its new box. The new box holds 2 kg. How much soap did the old box hold?

• Here is how Jada set up her double number line.

  

  Double number line, 7 evenly spaced tick marks. Top line, soap, kg. Fourth tick mark labeled 1.5. Fifth tick mark labeled 2. Bottom line. Fourth tick mark labeled 75 percent. Fifth tick mark labeled 100 percent. 

• Here is how Lin set up her double number line.

  

  Double number line, 7 evenly spaced tick marks. Top line, soap, kg. Fifth tick mark labeled 1.6. Sixth tick mark labeled 2. Bottom line. Fifth tick mark labeled 100 percent. Sixth tick mark labeled 125 percent.

Do you agree with either of them? Explain or show your reasoning.

A runner is running a 10 km race. It takes her 17.5 minutes to reach the 2.5 km mark. At this rate, how long will it take her to run the whole race?