To find the total cost, we first calculate the tip based on the haircut price of $13.99.
-
Calculate the amount of the tip: \[ \text{Tip} = 20% \text{ of } 13.99 = 0.20 \times 13.99 = 2.798 \]
-
Now, round the tip to the nearest hundredth: \[ \text{Tip} \approx 2.80 \]
-
Add the tip to the original cost of the haircut to find the total cost: \[ \text{Total Cost} = \text{Haircut Cost} + \text{Tip} = 13.99 + 2.80 = 16.79 \]
Thus, Kyrian's total cost is $16.79.