7th Grade BSC Rally Rehearsal 1

Which expression is equivalent to 10 − 3(4x + 8)?

• −12x − 14

• 12x + 14

• 14 − 12x

• −14 + 12x

The graph below shows the relationship between two quantities, x and y. What is the constant of proportionality shown in the graph?

• 1/7

• 1/8

• 7/8

• 8/7

The manager of a clothing store purchased 40 pairs of jeans for $500. She plans to sell each pair of jeans for $19.99. By what percent did she mark up the price?

• 60%

• 12.5%

• 10%

• 7.5%

Kylie is creating a scale drawing of her bedroom. The actual length of her bed is 75 feet. If 1 inch on her drawing represents 2 feet, how long should her bed be in the drawing?

• 37.5 inches

• 6.25 inches

• 3.125 inches

• 2.5 inches

Which expression represents the expression 20x – 10 after it has been factored completely?

• 2(10x – 5)

• 2(2x – 1)

• 10(20x – 10)

• 10(2x – 1)

Navid paid $469.44 for a new carpet for his bedroom. The dimensions of his bedroom floor are shown below. Find the cost of the carpet per square foot.

• $3.29

• $4.89

• $3.89

• $4.59

Find the value of x in the equation below. -3x – 5 = –17

• 22/3

• -22/6

• 4

• -4

The CEO of a company wants to know which health insurance plan her employees prefer. She plans to survey a sample of employees. Which of the following would be the best way to get a representative sample?

• Survey every 10th person who enters a grocery store on Saturday.

• Survey the first 25 employees who arrive at work in the morning.

• Survey 10 employees from each department of the company.

• Survey every employee in the sales department.

What is the value of the expression ?

• 16/81

• -16/81

• 1

• -1

Rene is cooking a turkey for a holiday dinner. She is using the table below to figure out how long the turkey needs to cook. For how many minutes should Rene cook each pound of turkey?

• 15

• 22

• 24

• 25