Answer:
angle A=30°
Step-by-step explanation:

Answer:
5 points per post and 2 points per replies
Answer:
-513.22
Step-by-step explanation:
I don't think they earned any profit. but instead lost money. Sorry it was wrong at first, I misread something.
Answer:
Step-by-step explanation: If 1 minutes of talk = 30 and texting = 30
and each additional minute of talk = 0.50
then the bill would be (for C = total cost)
C = 20+30+(0.45 • x)
OR
C = 50 + 0.45x
24+56=80 on the first column of the chart