Every month, adrian pays for his own long-distance calls made on his family phone. last month, 15 of the 60 minutes of long-distance charges were adrian's and he paid $2.50 of the $12 long-distance bill. did adrian pay his fair share?

No, Adrian did not pay his fair share.

Step-by-step explanation:

If you divide 60 by 15, you get 4 so Adrian made 1/4 of the families total long distance calls. So, he would need to pay 1/4 of the bill.

However, 1/4 of 12 is 3, not 2.50.

So, Adrian would need to pay $0.50 more in order to pay his fair share.

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