Answer:
The formula would be [tex]h = \frac{C - 25}{60}\\\\[/tex] (where "h" is the number of hours and C is the total amount of money given to the plumber). And if we use this formula we will know that In this case, the plumber was working for 2 hours
Step-by-step explanation:
From the question itself, we know if we let "h" represent the numbers of hours the plumber works and "C" represents the total amount of money paid to the plumber, then we can write the following equation...
C = 60h + 25
From here we can rearange the formula and get the following...
[tex]h = \frac{C - 25}{60}\\\\[/tex]
[tex]h= \frac{145-25}{60}[/tex]
[tex]h = \frac{120}{60}[/tex]
[tex]h = 2[/tex]
