Solve the problem.The speed of a stream is 5 mph. If a boat travels 44 miles downstream in the same time that it takes to travel 22 miles upstream, what is the speed of the boat in still water?
A. 17 mph
B. 18 mph
C. 15 mph
D. 10 mph
Answer: C
Mathematics
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Estimate the value of the quantity.A piece of tissue paper is picked up in gusty wind. The table shows the velocity of the paper at 2 second intervals. Estimate the distance the paper travelled using 
A. 179 ft B. 182 ft C. 202 ft D. 101 ft
Mathematics
Solve the problem.Jill is 
away from Joe. Both begin to walk toward each other at the same time. Jill walks at 
per hour. If they meet in 2 hours, how fast is Joe walking?
A. 4.5 km per hour B. 3.5 km per hour C. 2 km per hour D. 2.5 km per hour
Mathematics
Solve.Brittany bought a book for $11.53. If she paid with two $10 bills, what was her change?
A. $9.47 B. $8.47 C. $9.00 D. $8.37
Mathematics
Determine whether the given equation is linear.
- 
= 4x
A. Linear B. Nonlinear
Mathematics