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 last T minutes

Step-by-step explanation:

we know that

The linear equation in slope intercept form is equal to

where

m is the slope

b is the y-intercept

In this problem

Let

y is the cost of a telephone call

x is the number of minutes

The slope is equal to

The y-intercept is equal to

substitute

For x=T minutes

substitute

therefore

The expression that models the cost of a telephone call that last T minutes is

42.4

step-by-step explanation:

convert to decimal