Add or subtract as indicated.12
- 8
- 
A. 5
B. 3
C. -5
D. 4
Answer: B
Mathematics
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Simplify the expression.
A. 
B. 
C. 
D. 
Mathematics
Find the median.6, 5, 29, 19, 49, 43, 38
A. 29 B. 38 C. 19 D. 27
Mathematics
Find the least common multiple.x2 + 3x, x2 + 4x + 3
A. (x + 2)2 B. x(x + 3)(x + 1) C. x(x + 2)2 D. x(x + 2)(x + 1)
Mathematics
Solve the problem.An airplane flies 420 miles with the wind and 320 against the wind in the same length of time. If the speed of the wind is 40 mph, what is the speed of the airplane in still air?
A. 296 mph B. 286 mph C. 128 mph D. 301 mph
Mathematics