The cost of having a plumber spend h hr at your house if the plumber charges $30 for coming to the house and $x per hour for labor. the expression for the cost of the plumber coming to the house is how many dollars.

Step-by-step explanation:

Let

C-----> the cost of having a plumber spend h hours at your house

h----> the number of hours

x----> the cost per hour of labor

we know that

The linear equation that represent the cost C is equal to

In this linear equation in the slope-intercept form (y=mx+b)

the slope is equal to

the y-intercept b is equal to ---> charge for coming to the house

all of the months have 28 days

hope this : )

-yamauchi wang

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)