Chapter 1-7

( - ¼ ) ( ½ )

• -1/16
• - ⅛
• - ½
• ⅛

-⅔ × -⅘

• 2/3
• -6/8
• 8/15
• -8/15

-3.8 x 4

• -1.52
• 7.8
• 7.08
• -15.2

-2¼ × -5

• 10¼
• -11¼
• 11¼
• -10¼

Find the product of
(−⅗) ∗ (−1.5)

• −1 3/25 
• −0.09
• 3/25
• 0.9

Jenny has $2.40 deducted from her monthly allowance every time she forgets to do a chore. If she forgets three times in one month, what will be the change in Jenny’s total allowance? 

• −$7.20
• −$4.80
• $7.20
• $4.80

An airplane descends at a rate of 2,700 feet per minute. Once the airplane starts its descent, what will be its change in elevation after 3½ minutes? 

• −9,450 feet
  
• −8,100 feet
  
• −5,400 feet
  
• −10,800 feet
  

Sasha hikes into a canyon. She takes a break at the rest stations every ⅔ mile she descends. If she started at sea level and has hiked down to the fourth rest station, what is Sasha’s elevation now? 

• −8/3 miles or 2 ⅔ miles below sea level.
• −8/12 miles or 8/12 miles below sea level.
• −16/81 miles or 16/81 miles below sea level.
• −2/3 miles or ⅔ miles below sea level.

Jason spends $2.35 to buy lunch at school. If he buys a lunch on 9 days, what number represents the total change in the amount of money Jason has? 

• −$21.15
• −$18.80
• −$23.50
• −$16.45

A crew is shingling a roof. They complete 6.8 square feet every hour. How many square feet will they complete in 12 ½ hours of work? 

• 85 square feet
• 19.3 square feet
• 1.8382 square feet
• 5.7 square feet