Eric got a haircut that cost $35. He left a $7 tip.
What percentage did Eric leave as a tip?
To calculate the percentage of the tip, we need to divide the tip amount by the total cost of the haircut and tip, and then multiply by 100 to get the percentage.
Tip amount: $7
Total cost: $35 + $7 = $42
Percentage tip = ($7 / $42) x 100% = 16.67%
Eric left a 16.67% tip.