For her phone service heather pays a monthly fee of $27 and she pays an additional $0.06 per minute of use. the least she has been charged in a month is $87.90. what are the possible numbers of minutes she has used her phone in a month?

The answer is any number from 1015 to 44,640 minutes.

$87.90-$27=$60.9

$60.9/$0.06=1015

So possible numbers of minutes she has used her phone in a month are 1015 and any number above that up to 44,640 minutes. (If we suppose that it is for instance July - month with 31 days, she could call maximally 44,640 minutes, because she could not use her mobile more minutes than there are in the month.

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: