The phone company charges a flat rate of $2.75 plus an additional $0.25 each minute for a long-distance phone call.

a) write an equation to represent the total cost of making a long-distance phone call.

b) what will be the total cost of a 15-minute phone call?

c) you want to make a long-distance phone call to your grandparents. you have $11 to spend on the call. how long can you talk to your grandparents?

0.25x + 2.75 for A and B is 6.50 and C is 33 minutes he can talk.

Step-by-step explanation:

Part a: by looking at the graph, the second graph, it can be seen that the line segment above is less steeper than the line segment below.therefore, the amount she deposited after day 16 were each less than $100.part b: given that she kept the account open for only 3 weeks and that the greatest balance she had in the bank account over the three weeks period is $400.given that she deposited $100 in her bank account on day 16.  from the graph it can be seen that she had no money in the account before day 16 and we can estimate the balance in the account at the final day to be $300.therefore, we estimate the amount she deposits everyday after day 16 as follows: therefore, the amount of money ebony deposited into her account each day after day 16 is $40.