Solve the problem.A boat goes 160 mi downstream in the same time it can go 120 mi upstream. The speed of the current is 
Find the speed of the boat in still water.
A. 72 mph
B. 63 mph
C. 54 mph
D. 28 mph
Answer: B
Mathematics
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Solve the problem.Alex has saved $266 at the bank. He wants to accumulate $1750 for a trip to soccer camp. What percent of his goal has been reached?
A. 7% B. 70% C. 15.2% D. 0.152%
Mathematics
Solve the problem.Find an expression that represents the area of the figure.(Leave ? in the answer.)
A. 36?t25 B. 36?t5 C. 12?t10 D. 36?t10
Mathematics
Solve the equation.
+ 
= 
A. { -3 }
B. 
C. ?
D. { -5 }
Mathematics
Use the discriminant to determine the number and type of the solutions to the quadratic equation. Do not solve the equation.x2 - 5x - 6 = 0
A. exactly one real solution B. two nonreal solutions C. two real solutions
Mathematics