Unit 1 Review

1. John and Kamira are playing a game together. John's score (J) and Kamira's score (K) after round one are shown on the number line.

• The sum of John's score and Kamira's Score

• the difference between John's score and Kamira's score

• the absolute value of the difference between John's score and Kamira's score

• the sum of the absolute value of John's score and the absolute value of Kamira's score

What is the value of 4.2(46-65)?

• -798

• -79.8

• 79.8

• 798

What is the product?

-8(7-3.2)

• -59.2

• -30.4

• 30.4

• 52.8

During one week, Sheila made several changes to her bank account. She made four withdrawals of $40 each from an ATM. She also used her check card for a $156 purchase. Then she deposited her paycheck of $375.

By how much did the amount in her bank account change during that week?

• $59 increase

• $59 decrease

• $691 increase

• $691 decrease

Last year at a track meet, runner A and runner B both ran each of 4 laps in a race in 1.5 minutes, Runner A sets a goal for this year of changing his total time for the race by -0.12- minutes, with equal times for all 4 laps. Runner B sets a goal for this year of changing his time on each lap by -0.025 minutes.

Runner A's goal is to change his time on each lap of the race by ____________ minutes.

Runner B's goal is to change his total time for the race by ____________ minutes.

An employee is starting a job with an annual salary of $40,000. the employee's annual salary will increase by 3% at the end of each year with the company.

What will the employee's annual salary, in dollars, be at the end of the second year with the company?

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Select arrows to the number line to show that -5 and its opposite have a sum of 0.

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