Describe the situation with a linear inequality and then solve the inequality.ABC phone company charges $20 per month plus 
per minute of phone calls. XYZ phone company charges $12 per month plus 8¢ 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. < 400 minutes
B. > 40 minutes
C. < 40 minutes
D. > 400 minutes
Answer: A
Mathematics
You might also like to view...
Decide whether or not the functions are inverses of each other.f(x) = 
, domain [-6, ?); g(x) = x2 + 6, domain (-?, ?)
A. No B. Yes
Mathematics
Solve the problem.If half a number is added to 9, the result is greater than or equal to -9. Find all such numbers.
A. x ? 0 B. x ? -81 C. x ? -36 D. x > -36
Mathematics
Graph the system of inequalities, and find the coordinates of the vertices.3x - 2y ? -6 x - 1 ? 0
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A piece of cheese weighing 
pound is to be divided into 8 equal portions. What will be the weight of each portion?
A. 
lb
B. 
lb
C. 
lb
D. 12 lb
Mathematics