<u>Answer:</u>
For 500 minutes, the costs of the two plans are equal.
<u>Step-by-step explanation:</u>
Let t be the time of calls in minutes; and
c be the cost of the monthly plan.
<u>1st plan:</u>
<u>2nd plan:</u>
Setting the monthly costs equal to each other to get:
when call minutes , then the cost of the plans are:
1st plan:
2nd plan:
Two Angles are Supplementary when they add up to 180 degrees. You didnt add a picture but choose the angles that create a straight line, kind of like if you were doing a puzzle.
2 + (g + 5) It doesn't matter what order you do it in because this is all addition.
= 2 + g + 5 First you simplify
= g + 7 And there you go, your answer.