Final answer:
The total amount that Landon paid at the register can be represented by the expression 0.9x + 0.04x. Option C is the correct choice.
Step-by-step explanation:
The total amount that Landon paid at the register can be represented by the expression 0.9x + 0.04x, which is option C. Let's break it down step-by-step:
- Landon has a coupon for 10% off, so he will pay 90% of the original price, which is 0.9x.
- Then, a 4% tax is added to the discounted price. To find the amount of tax, we convert the percent into a decimal and multiply it by the discounted price: 0.04 * 0.9x = 0.04x.
- Finally, we add the discounted price and the tax: 0.9x + 0.04x = 0.94x.
Therefore, option C, 0.9x + 0.04x, represents the total amount that Landon paid at the register.