EE.3

Which statement is true?

• The expression 8.22 + 115.50 represents that the cost of 2 adapters and 2 monitors is $123.72.

• The expression 8.22 + 115.50 represents that the cost of 2 adapters and 2 monitors is $247.44.

• The expression (8.22 × 2) + (115.50 × 2) represents that the cost of 2 adapters and 2 monitors is $123.72.

• The expression (8.22 × 2) + (115.50 × 2) represents that the cost of 2 adapters and 2 monitors is $247.44.

A customer buys 4 adapters and 6 power cords for $222.48. What is the price of a power cord?

• $22.25

• $31.60

• $37.08

• $189.60

A mathematician simplifies the expression mentally. 5(-7.9) - 6.9(-12 - 44) What is the best estimate of the value of the expression?

• -425

• -350

• 350

• 425

• 8 quizzes

• 23 quizzes

• 25 quizzes

• 40 quizzes

A mathematician simplifies the expression mentally. 12(-72) + 41(-3 - 32) What is the best estimate of the value of the expression?

• -2,100

• -700

• 700

• 2,100

A child earns a total of $220 from a lemonade stand. The child spends 10% of the total earnings on supplies to make a second lemonade stand, donates 1/2 of the total earnings to an animal shelter, and saves the remaining amount. Determine which statements are true.

• The expression 220 - (0.10 x 220) - (1/2 x 220) represents the total amount the child saves.

• The expression 220 - (0.10 x 1/2 x 220) represents the total amount the child saves

• The child saves a total of $88.

• The child saves a total of $209.

Use the information given to answer the question. Gabrielle and Rob each earn $22 an hour, and each works 40 hours this week.

PartA:

Gabrielle buys a train ticket for $215.80 and 2 suitcases that cost $36.50 each with her earnings this week. Which statement is true?

• A) Gabrielle has $591.20 of her earnings left over because 40(22) - 215.8 - (2 x 36.5) is equal to 591.2.

• B) Gabrielle has $625.70 of her earnings left over because 40(22) - 215.8 - 2 - 36.5 is equal to 625.7.

• C) Gabrielle has $375.40 of her earnings left over because 40(22) - (2 x 215.80) - (2 x 36.50) is equal to 375.4.

• D) Gabrielle has $411.90 of her earnings left over because 40(22) - (2 x 215.80) - 36.50 is equal to 411.9.

Use the information given to answer the question.

Gabrielle and Rob each earn $22 an hour, and each works 40 hours this week.

PartB:

Rob spends 1/2 of his earnings this week on bills and then buys a video game for $25.75. How much of his earnings from this week does Rob have left?

• $5.25

• $34.25

• $414.25

• $853.75

A server makes $200 a week working at al ocal restaurant. The server saves 35% of the $200 weekly earnings each week for 4 weeks. If the server saves 7/8 of the 5th week's $200 earnings, how much money will the server have saved in total after the 5 weeks?

• $245

• $305

• $315

• $455

• -18

• -12

• 12

• 18