7R Unit 6 Test Review 1

What scenario leads to a net result of zero?

• The net change in speed when a car accelerates from 0 mph to 60 mph and then decelerates back to 0 mph

• The total earnings when a person buys a stock for $50 and sells it for $50

• The net change in elevation when a hiker climbs 1000 meters up a mountain and then descends 1000 meters

• The total distance covered when a runner jogs 5 miles north and then 5 miles south

Sarah purchased a smartphone that was 15% off the regular price of $900. If a 10% sales tax was added to the cost of the smartphone, what was the total price Sarah paid for it?

• $765.00

• $841.50

• $850.50

• $990.00

Emily started a savings account with an initial deposit of $600. Her account earns an annual interest rate of 2.5%. Assuming no additional deposits or withdrawals, what will be the total interest earned after 3 years?

• $15

• $45

• $545

• $4500

For a contest, Olivia and her dad needed to guess how many tennis balls were in a basket. She guessed that there were 30 tennis balls in the basket. If there were actually 40 tennis balls in the basket, what was Olivia’s percent error?

• 25%

• 33.3%

• 20%

• 28.57%

Solve for m: 6m - 14 = 10

• m = 144

• m = 4

• m = -4

Yazir is a car salesman and earns a base salary of $400 per week plus 5% commission on sales. What was Yazir’s weekly gross salary if his total sales were $3200?

• $160

• $560

• $1,600

• $2,000

Diya has a discount card that reduces the price of her grocery bill at Trader Joe’s by 5%. If c represents the cost of Diya’s groceries, which expression represents Sarah’s grocery bill?

• 0.05c

• 0.95c

• c - 0.05

• c + 0.95

The Tigers played 40 games last season. This season, the Tigers played 50 games. What is the percent increase in the number of games the Tigers played from last season to this season?

• 10%

• 20%

• 25%

• 50%

Clara goes miniature golfing. She pays $8.00 for an admission ticket and $5.50 for each round she golfs. The total amount Clara pays for admission and the number of rounds she golfs is $24.50. Which equation can be used to determine the number of rounds, x, that Clara golfs?

• 5.50x + 8.00 = 24.50

• 5.50x − 8.00 = 24.50

• 8.00x + 5.50 = 24.50

• 8.00x − 5.50 = 24.50

At a seminar, there are 80 attendees. If 40% of the attendees are male, how many males are at the seminar?

• 32

• 40

• 48

• 28