$\"\"$

Observe the table:

Emergency house call is $\"\"$ one time fee.

Rate of electrician $\"\"$ works in hour is $\"\"$ .

Find relationship between the $\"\"$ and $\"\"$ :

Where $\"\"$ be represents the number of hours an electrician works and $\"\"$ represents the total charges.

The equation is $\"\"$ .

Therefore, the relationship between $\"\"$ and $\"\"$ is $\"\"$ .

Option (C) is right choice.

$\"\"$

Option (C) is right choice.