Solve the problem.A plane flies 480 miles with the wind and 320 miles against the wind in the same length of time. If the speed of the wind is 25 mph, what is the speed of the plane in still air?
A. 130 mph
B. 125 mph
C. 150 mph
D. 115 mph
Answer: B
Mathematics
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Write the Egyptian numeral as a Hindu-Arabic numeral using the table below.
A. 2313 B. 200,313 C. 230,130 D. 20,313
Mathematics
Solve for the missing number.
= 
A. 
B. 
C. 72
D. 2982
Mathematics
Factor the expression completely, if possible.144 - x2y4
A. (12 + x2y2)(12 - x2y2) B. (12 + xy)(12 - xy) C. (12 + xy2)(12 - xy2) D. (12 - y)2
Mathematics
Determine whether the graph is the graph of a function.
A. yes B. no
Mathematics