Find the best buy (based on cost per unit).There are 3 available long distance calling cards. ABC Phone charges $.01 per minute and a $0.50 connection charge.Bozo's Telecom charges $.025 per minute and a $0.15 connection charge.BT&T charges $.06 per minute and no connection charge.Which company has the best buy for a 15 minute phone call?
A. Bozo's Telecom
B. BT&T
C. ABC Phone
D. Not enough information
Answer: A
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Refer to the figures and recursive rules below to answer the following question(s).
What is the area of the figure obtained when we recursively apply Rule E infinitely many times, given that the area of the starting equilateral triangle is 10?
A. 0 B. infinite C. 4 D. 16 E. none of these
Solve the problem.The input-output matrix for an economy is Output: Agri. Mfg. Input:
= TThe demand matrix is D = 
Find the production matrix X.
A.
X = 
B.
X = 
C.
X = 
D.
X = 
Sketch the graph of the function and its inverse on the same coordinate axes.y = 
A. 
B. 
C. 
D. 
Solve the problem.A certain radioactive isotope has a half-life of 396 years. Determine the annual decay rate, k.
A. 0.265% B. 0.195% C. 0.135% D. 0.175%