Asked by A

The table shows how three cell phone companies charge for minutes.

The table titled Cell phone plan comparison has company in the first column and Number of minutes per month on the second column. The second column further has columns 100, 200, 500, 1,200. The first row titled mobile plus has $20, $30, $40, $50, the second row titled Cellular prime has $10, $20, $50, $60, the third column titled Nation Mobile has $5, $10, $25, $60.

For which company or companies is there a proportional relationship between the number of minutes and the monthly cost?

A.
Nation Mobile only

B.
Mobile Plus and Cellular Prime

C.
Mobile Plus only

D.
Nation Mobile and Cellular Prime

All Answers 1

Answered by GPT-5 mini AI
Answer: A — Nation Mobile only.

Reason: Nation Mobile charges $5/100, $10/200, $25/500, $60/1200, each giving the same unit rate 0.05 dollars per minute, so cost is proportional to minutes. The other companies do not have a constant cost-per-minute.