Solve the problem.A person has $325 in her online movie account. Find the maximum number of movie downloads costing $4 each that this person can purchase. How much is left in the account?
A. 81; $3
B. 81; $1
C. 81; $0
D. 82; $0
Answer: B
Mathematics
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Solve the problem.Find the moment of inertia about the x-axis of a thin plane of constant density 
bounded by the coordinate axes and the line 
.
A. 504
B. 588
C. 686
D. 
Mathematics
Convert using dimensional analysis.52,800 feet to miles
A. 10.5 mi. B. 11 mi. C. 264 mi. D. 10 mi.
Mathematics
If the following defines a one-to-one function, find its inverse. If not, write "Not one-to-one." 
A. Not one-to-one
B. 
C. 
D. 
Mathematics
Find the whole.69 hotels is 115% of what number of hotels?
A. 132.25 B. 60 C. 13,225 D. 600
Mathematics