The answer to the question is a
To find r, first write out the equation:

Next, multiply both sides by 2:

Now, subtract both sides by 4:

Divide both sides by 3:

The answer to this problem is
r = 2. Hope this helps and have a phenomenal day!
Assuming you mean whole numbers, 41 times 1 equals 41, or 1 times 41.
C. For every decrease of one chore completed, one hour was spent on the internet.