Question

The cost of a telephone call is $0.75 + $0.25 times the number of minutes. Write an algebraic expression that models the cost

of a telephone call that lasts t minutes.

Answer 1

c = 0.25t + 0.75

Step-by-step explanation:

To find the cost of a telephone call (c)...

First, because all telephone calls cost $0.25 a minute (t) once they're started, we can start our equation with 0.25 * t.

And second, because a telephone call has a base fee of $0.75, we add that value to the end of the equation.