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Mathematics, 16.08.2021 20:00 haileestulley

For her phone, Halima pays a monthly fee of 18 AED and she pays an additional 5 fils per minute of use. The least she has been charged in a month is 71.90 AED. What is the minimum number of minutes she has used on her phone in a month?

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For her phone, Halima pays a monthly fee of 18 AED and she pays an additional 5 fils per minute of u...
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