A telephone call costs c cents for the first 3 minutes and 12 cents for each additional minute. Write and solve an equation to find the total cost of 25 minutes call.

cost=c+(25-3)12

.76

To find the total cost of a 25-minute call, we need to consider two parts: the cost for the first 3 minutes and the cost for the additional minutes.

Let's break it down:
- The cost for the first 3 minutes is c cents, as given in the question.
- The cost for the additional minutes (from minutes 4 to 25) is 12 cents per minute.

To find the total cost, we can set up an equation:

Total cost = Cost for the first 3 minutes + Cost for additional minutes

Cost for the first 3 minutes = c cents
Cost for additional minutes = (25 - 3) * 12 cents

Now we can substitute these values into the equation:

Total cost = c + (25 - 3) * 12

Simplifying further:

Total cost = c + 22 * 12
Total cost = c + 264

So the equation to find the total cost of a 25-minute call is:

Total cost = c + 264

To solve the equation, we would need the value of c. If the value of c is given, we can simply substitute it into the equation to find the total cost.