Write an algebraic equation and use it to solve the problem.A promotional deal for long distance phone service charges a $15 basic fee plus $0.05 per minute for all calls. If Joe's phone bill was $57 under this promotional deal, how many minutes of phone calls did he make? Round to the nearest integer, if necessary.
A. 2 minutes
B. 1440 minutes
C. 840 minutes
D. 8 minutes
Answer: C
Mathematics
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Use Euler's formula to answer the question.A prism has 10 faces. How many vertices and edges does it have?
A. 24, 24 B. 16, 24 C. 24, 16 D. 16, 16
Mathematics
Solve.
2 - 14
+ 23 = 0
A. -
B. 26
C. 
D. No solution
Mathematics
Simplify the expression. Assume that all variables represent nonnegative numbers.
- 2
- 5
A. -15
B. 16
C. -15
D. 
- 17
Mathematics
Solve the problem.An elliptical riding path is to be built on a rectangular piece of property that measures 8 mi by 6 mi. Find an equation for the ellipse if the path is to touch the center of the property line on all 4 sides
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics