Plumber a charges an initial fee of $45 plus a rate of $60 per hour. write the function that shows the total cost for the hours worked.

t = 45 + 60a represents the function that shows the total cost for the hours worked.

Given that Plumber a charges an initial fee of $45 plus a rate of $60 per hour

To find: Write the function that shows the total cost for the hours worked

Let "t" represent the total cost for plumber

Let "a" be the number of hours the plumber worked

Initial fee = $ 45

Cost per hour = $ 60

We can frame a function as:

total cost = initial fee + (number of hours the plumber worked x Cost per hour)

t = 45 + 60a

Thus the above function shows the total cost for the hours worked.

12 times.

Step-by-step explanation:

That would be 40 * 0.3 = 12.