Perform the indicated operations.13 + 13 - (4 + 3)
A. 19
B. -7
C. -1
D. 25
Answer: A
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Find the probability of the event.A bag contains 3 red marbles, 8 blue marbles, and 7 green marbles. What is the probability of choosing a blue marble when one marble is drawn?
A. 
B. 
C. 
D. 
Jim drove 288 miles. Jim's brother made the same trip at a speed 16 miles per hour slower than Jim did and required an extra 
hours. Find Jim's rate and time.
?
A. 64 mph, 2.5 hr B. 58 mph, 4.5 hr C. 64 mph, 4.5 hr D. 58 mph, 2.5 hr E. not possible
Solve the problem. Round to the nearest hundredth of a percent if needed.Use of the internet for shopping is increasing dramatically, but still is somewhat age dependent. When a popular web site that sells books asked the age of users who bought products from them over the internet, they obtained the following data. What is the probability that a buyer on this web site is aged 
A. 2.95% B. 4.41% C. 2.86% D. 4.45%
Fill in the blank with one of the words or phrases listed below. 
A collection of numbers (or objects) enclosed by braces is called a(n) 
.
A. set B. solution C. quotient D. subtrahend