Find the product.
What will be an ideal response?
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Solve the problem.ABC phone company charges $22 per month plus 
per minute for phone calls. XYZ phone company charges $13 per month plus 7¢ per minute for phone calls. How many minutes of phone calls should be made each month to make XYZ phone company a better deal?
A. more than 30 min B. fewer than 300 min C. more than 300 min D. fewer than 30 min
Use the leading coefficient test to determine whether y?? or y?-? as
y = 4x4 + 5x2 + x - 1
A. ? B. -?
Solve the problem.The sales of a mature product (one which has passed its peak) will decline according to the function 
where t is time in years since the peak sales. Find the sales of a product 13 years after its peak sales if 
and 
A. 9687 B. 324,023 C. 59,788 D. 4844
Graph the function.y = 
cos 
x
A. 
B. 
C. 
D. 