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Question 1 of 5
Aubrey can run at a pace of 6 miles per hour. Running at the same rate, how many miles can she run in 90 minutes?
A 4
B 6
C 8
D 9
Why: First convert 90 minutes to hours: \( 90 \div 60 = 1.5 \) hours.

Distance = speed × time = \( 6 \times 1.5 = 9 \) miles.

Option D is 9, which matches the calculated distance.
Question 2 of 5
Which of the following is a factor of \( 15 + 45 \)?
A A. 10
B B. 15
C C. 20
D D. 25
Why: Calculate \( 15 + 45 = 60 \).

Factors of 60 include 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60.

Among the options, only 30 (option E) is a factor of 60.
Question 3 of 5
A number is divided by four. The result is divided by three, for a final result of two. What was the original number?
A 6
B 12
C 18
D 24
Why: Let original number be \( x \).

After dividing by 4: \( \frac{x}{4} \).

Then divide by 3: \( \frac{x}{4} \div 3 = \frac{x}{12} = 2 \).

Thus, \( x = 2 \times 12 = 24 \).

Option D is 24.
Question 4 of 5
What is the difference between 3.8 and 0.571?
A 0.73
B 2.567
C 3.229
D 4.262
Why: Difference means subtraction: \( 3.8 - 0.571 \).

Align decimals: \( 3.800 \)
\( -0.571 \)
\( 3.229 \)

Option C is 3.229.
Question 5 of 5
What is 2.567 rounded to the nearest hundredth?
A 2.6
B 3.0
C 2.57
Why: Hundredth place is 6, thousandth is 7 (≥5, so round up).

2.56 → 2.57.

Option C is 2.57.