Final answer:
To determine which plumber offers the better rate for a four-hour job, calculate the total cost for each. Plumber A will cost $225, while Plumber B will cost $215; Plumber B is the more cost-effective choice.
Step-by-step explanation:
The subject of the question is Mathematics, specifically dealing with determining which plumber is more cost-effective for a job that takes four hours to complete. You are asked to compare the two total costs given the different pricing schedules for each plumber.
For Plumber A, the cost calculation would be the initial $25 high school fee plus $50 for each hour of labor. Given the job will take four hours:
- $25 + (4 hours * $50/hour) = $25 + $200 = $225
For Plumber B, the cost calculation is the initial $35 car fee plus $45 for each hour of labor. Again, for four hours:
- $35 + (4 hours * $45/hour) = $35 + $180 = $215
Comparing the two, Plumber B will charge less for this job. The total cost if you hire Plumber B will be $215.