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9 questions
1. On Monday, the value of a stock decreased by point. On Tuesday, the value increased by point. On Wednesday, the value decreased by point. What number represents the change in stock value after the three days?
7/8 point
2/8 point
-1/8 point
-13/8 point
1. Which statement below is equivalent to –15 – 12?
-15 + 12
12 - -15
15 - 12
-15 + -12
Scientists determined that Antarctica’s average winter temperature was −34.44°C. The difference between this temperature and Antarctica’s highest recorded temperature was 49.44 degrees. What was Antarctica’s highest recorded temperature?
−83.88°C
−15°C
15°C
83.88°C
1. Doug earns $10.50 per hour working at a restaurant. On Friday he spent 1 3/4 hours cleaning, 2 1/3 hours doing paperwork and 1 5/12 hours serving customers. What were Doug’s earnings?
$46.97
$47.25
$53.00
$57.75
1. Which expression has a positive product?
13⋅(−7)
8 ⋅ (−20)
99÷(−3)
−31⋅ −75
1. Which expression is equivalent to ? 85 − 43(8−31)+1
−3 83
−3 85
−6 87
−4 81
A clogged bathtub drains at a constant rate. The amount of water in the bathtub changes by -3.75 gallons in one hour. What is the change in the amount of water in the bathtub after 1/3 of an hour?
-1.25
-2.25
-6.25
-11.25
Destiny is practicing basketball. She makes 8 out of 25 free throws. Which decimal shows how often Destiny makes a basket?
3.2
3.125
0.32
0.3125
1. Joe’s apple weighs 4/5 lb. Marta’s apple weighs 0.5 lb. How much more does Joe’s apple weigh than Marta’s?
0.3 lb
.75 lb
0.8 lb
1.25 lb
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