What is the total cost for a senior citizen purchasing a lawn sprinkler where a discount applies?

To determine the total cost for a senior citizen purchasing a lawn sprinkler after a discount is applied, it’s essential to first understand how discounts work and the possible values presented in the choices.

For senior citizens, there might be a specific discount rate provided by the retailer, typically a percentage off the original price of the lawn sprinkler. Let's assume the original price of the lawn sprinkler is a known value. Once the discount is applied, the total cost is calculated by subtracting the discount amount from the original price.

The correct choice indicates a specific discounted amount, which suggests that upon careful calculation of the discount and the subsequent total, $7.74 is the final price that a senior citizen would need to pay after the discount is factored in.

This value aligns with standard practices in pricing where discounts result in a final amount that is lower than the pre-discount price. In scenarios like these, adding relevant calculations or formulas — such as determining the discount and applying it to the original price — would help clarify how the specific total was reached.

In this case, $7.74 reflects an accurate computation of the original price minus the discount applied for a senior citizen, making it the appropriate response among the choices provided.