# Question #b7c26

##### 2 Answers

Jul 4, 2016

#### Answer:

I would say:

#### Explanation:

Tou can write it as:

where

Jul 4, 2016

#### Answer:

#### Explanation:

The first thing is to find out how many minutes there are more than the first 1000 minutes. Find the difference:

Number of minutes in excess of 1000 =

For each of those minutes he will pay $0.30.

He also pays the monthly fee of $75.

The total cost

This simplifies to

Check: Assume he uses 1200 minutes

Cost =

or: