Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. -17
-2
+ 11
- 3
A. -6
- 5
B. -6
- 
C. -28
- 5
D. -28
+ 
Answer: A
Mathematics
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Evaluate.82 ÷ 8 × 8 + 7
A. 71 B. 8 C. 448 D. 57
Mathematics
Perform the indicated operation.
? 
A. 
B. 
C. 
D. 
Mathematics
Solve, rewrite in interval notation, and graph.
- 4 ? -4 or 
+ 4 ? 6
A. (-?, 0] ? 
B. (-?, 0] ? 
C. (-?, 0] ? 
D. (-?, 0] ? 
Mathematics
Use the four-step procedure to solve the variation problem.The amount of time it takes a swimmer to swim a race varies inversely as the average speed of the swimmer. A swimmer finishes a race in 120 seconds with an average speed of 5 feet per second. Find the average speed of the swimmer if it takes 200 seconds to finish the race.
A. 4 feet per second B. 2 feet per second C. 3 feet per second D. 5 feet per second
Mathematics