The ATT high use plane for Internet and email cost $40 for the first 5000 MB (megabytes) plus $0.06 for each additional MB. (FYI, the ATT plan list 5000 MB as 5 GB.) Use your graph to estimate the cost of these usages: 4000 MB, 4900 MB, 5900 MB.
A) $41$ , $41$ , $95$
B) $39$ , $39$ , $93$
C) $42$ , $39$ , $96$
D) $40$ , $40$ , $94$
E) $38$ , $41$ , $92$

Question

Quizplus · Accepted Answer

For 4000 MB and 4900 MB, the usage is within the first 5000 MB, so the cost is $40. For 5900 MB, the usage exceeds the first 5000 MB by 900 MB. The additional cost is 900 MB * $0.06/MB = $54. The total cost is $40 + $54 = $94.

The ATT High Use Plane for Internet and Email Cost 414141

The ATT High Use Plane for Internet and Email Cost $41$