To calculate the total amount that Stefan will pay for the toy car, we need to add the price of the car and the tax that he has to pay. The tax is calculated as 6% of the price of the car. Therefore, the expression that represents how much Stefan will pay in total for the toy car is:
p + 0.06p
Simplifying this expression, we can factor out p to get:
p(1 + 0.06)
This can be further simplified to:
p(1.06)
Therefore, Stefan will pay a total of p(1.06) dollars for the toy car, which includes the price of the car and the 6% tax.