21 questions
Simplfy.
Use order of operations.
-13
-12
12
13
A football team loses 5 yards on each of 3 consecutive plays. What signed number represents the team's total loss of yards on the 3 plays?
5 (-3) = 15
(5) 3 = 15
-5 (-3) = -15
-5 (3) = -15
The selling price of a house dropped from $250,000 to $210,000 over a period of 5 years. By what percentage did the selling price decrease?
16%
19%
40%
23%
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
Which expression is equivalent to -7(y - 2). Use the distributive property.
-7y - 2
-7y + 2
-7y - 14
-7y + 14
The average rate of hair growth is 2.5 centimeters every 2 months. At that rate, how many months will it take to grow 22.5 centimeters of hair? Use proportions.
Consider the graph.
What does point A represent on this graph?
4 web visits per 12 downloads
The rate of change
4 downloads per 12 web visits
The slope of the line
The local resale store buys used designer jeans for $15. The store increases their purchase price by 400%. What is the sale price of the designer jeans?
$60
$75
$125
$600
A recipe that yields 2.5 dozen muffins requires 1.25 cups of flour. Mandy wants to make 10 dozen muffins. How many cups of flour will she need? Use proportions.
2.5 cups
5 cups
10 cups
20 cups
Kerry walks 3 miles each day. How far will she walk in 7 days? Use proportions.
10 Miles
14 Miles
21 Miles
24 Miles
Suppose that a butterfly can fly 82 feet in 4 seconds. A dragonfly can fly 50 feet in 2 seconds. Which can fly faster and by how much? Use unit rate.
The dragonfly is 4.5 feet per second faster.
The dragonfly is 20.5 feet per second faster.
The butterfly is 4.5 feet per second faster.
The butterfly is 24 feet per second faster.