Graph the system of inequalities.4x + 3y ? 12x ? y 
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.A jet plane traveling at a constant speed goes 1200 miles with the wind, then turns around and travels for 1000 miles against the wind. If the speed of the wind is 50 mph and the total flight took 4 hours, find the speed of the plane.
A. 435 mph B. 605 mph C. 525 mph D. 550 mph
Solve.An engineer uses the expression 
to describe the width of a rectangular steel plate she is designing for a machine. The expression 
describes the length. Write a rational expression for the difference of the width and the length.
A. 
- 
B. 
+ 
C. 
D. 
Write the augmented matrix for the system.
A. 
B. 
C. 
D. 
Solve the problem.At what interest rate would a deposit of $50,000 grow to $72,750 in 15 years with continuous compounding?
A. 0.5% B. 2.5% C. 5.5% D. 3.5%