
A circular running track is 1/4 mile long. Elena runs on this track, completing each lap in 1/20 of an
hour.
What is Elena’s running speed? Include the unit of measure.
Lin’s father is paying for a $20 meal. He has a 15%-off coupon for the meal. After the discount,
a 7% sales tax is applied.
What does Lin’s father pay for the meal? Explain or show your reasoning.



Priya has a recipe for banana bread. She uses 7 1/2 cups of flour to make 3 loaves of banana bread.
Andre will follow the same recipe. He will make b loaves of banana bread using f cups of flour.
Which of these equations represents the relationship between b and f?
Diego measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm.
Which of these is closest to the percent error for Diego’s measurement?
Tyler’s brother works in a shoe store.
a. Tyler’s brother earns a commission. He makes 2.5% of the amount he sells. Last
week, he sold $900 worth of shoes. How much was his commission?
The store bought a pair of shoes for $50, and sold it for $80. What percentage was
the markup?
Tyler’s brother earns $12 per hour. The store offers him a raise—a 5% increase per
hour. After the raise, how much will Tyler’s brother make per hour?
A heron is perched in a tree 50 feet above sea level. Directly below the heron, a pelican is flying
17 feet above sea level. Directly below the birds is a trout, swimming 23 feet below sea level.
Select all the true statements.
Solve each equation.
12 - x = 12.5
-0.1 = -10x
The table shows transactions from five different bank accounts. Fill in the missing
numbers.
Jada walks up to a tank of water that can hold up to 10 gallons. When it is active, a drain
empties water from the tank at a constant rate. When Jada first sees the tank, it contains
7 gallons of water. Three minutes later, the tank contains 5 gallons of water.
At what rate is the amount of water in the tank changing? Use a signed number,
and include the unit of measurement in your answer.
How many more minutes will it take for the tank to drain completely? Explain or
show your reasoning.
How many minutes before Jada arrived was the water tank completely full?
Explain or show your reasoning.