Perform the indicated operations and simplify.
- 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Simplify the expression using order of operations.-4 ? 9 - 7 ? 5
A. 3 B. -71 C. -215 D. -40
Mathematics
Find the probability.The table below describes the smoking habits of a group of asthma sufferers.
If one of the 1124 people is randomly selected, find the probability that the person is a man or a heavy smoker.
A. 0.552 B. 0.471 C. 0.511 D. 0.512
Mathematics
Simplify. Assume that variables can represent any real number.
A. 8?y? + 8 B. 8y + 8 C. ?8y + 8? D. -8y - 8
Mathematics
In the figure below, 
. How many degrees from the horizontal position are the wings of the airplane?
?
?
A. 129 B. 51 C. 39 D. 84 E. 309
Mathematics