Solve the problem.An airplane travels 800 miles against the wind in 5 hours, and makes the return trip with the same wind in 2 hours. Find the speed of the wind.
A. 400 mph
B. 160 mph
C. 120 mph
D. 280 mph
Answer: C
Mathematics
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Find the inverse of the function.f(x) = 
x + 2
A. f-1(x) = 
x + 9
B. f-1(x) = 9x - 18
C. f-1(x) = 
x - 2
D. f-1(x) = 9x + 18
Mathematics
Find the value of x.
?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Evaluate the exponential expression. 124
A. 24 B. 0 C. undefined D. 1
Mathematics
Graph the piecewise-defined function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics