The equation to this line is y=2x+3
Part C:
y = total cost
M = minutes
You can talk on the phone only 100 minutes per month
Company A:
y = 0.04M + 5
y = 0.04(100) + 5
y = 4 + 5
y = 9 $9 per month
Company B:
y = 0.10M + 2
y = 0.10(100) + 2
y = 10 + 2
y = 12 $12 per month
Company A offers the best deal because at Company A you have to pay $9 for 100 minutes per month, and at Company B you have to pay $12 for 100 minutes per month, so you have to pay $3 less.
Part D:
1.) With a budget of $30, Company A would allow me to talk longer on the phone. I know this because for Company A, you pay $3 less per month for the same amount of minutes as Company B. This means that I will save more money with Company A, and I can buy more minutes. (something like this)
Answer:
Step-by-step explanation:
Given that interest rates are as follows:
Let P be 100 dollars for each.
A) 3.15% compounded monthly.
Hence amount = 
Final amount = 103.20 dollars
B) 2.25% compounded quarterly
Final amt. = 
=102.27
C) 2.05% compounded daily
Amount = 
=102.07
Obviously A is the best deal.
39 because 6/3= 2 and 78/39 also = 2
I think 20 hope that helps
