Simplify.5[-7 + 5(-3 + 5)]
A. -24
B. -25
C. -20
D. 15
Answer: D
Mathematics
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Find the sum, if it exists.-13 - 
- 
- 
- . . .
A. 
B. - 
C. - 
D. Does not exist
Mathematics
Describe the situation with a linear inequality and then solve the inequality.ABC phone company charges $21 per month plus 
per minute of phone calls. XYZ phone company charges $17 per month plus 7¢ per minute of phone calls. How many minutes of phone calls should be made each month to make XYZ phone company a better deal?
A. less than 200 minutes B. more than 20 minutes C. more than 200 minutes D. less than 20 minutes
Mathematics
Factor completely.x2 - x - 45
A. (x - 5)(x + 9) B. cannot be factored C. (x + 5)(x - 9) D. (x - 45)(x + 1)
Mathematics
Solve the equation by making an appropriate substitution.(3x - 7)2 - 4(3x - 7) - 12 = 0
A. 
B. 
C. 
D. 
Mathematics