Final answer:
To find the total discounted cost for a 6-day hotel stay at $45 per day with a 10% discount, multiply the rate by the number of days, calculate the discount, and subtract it from the initial cost to get $243.
Step-by-step explanation:
The student is asking to calculate the total cost of a hotel stay after a 10% discount with a magic kingdom club card from Disneyland. The original rate is $45 per day, and the stay is for 6 days. We first calculate the total cost without the discount by multiplying the daily rate by the number of days ($45 × 6 = $270). Then, we calculate the 10% discount ($270 × 0.10 = $27) and subtract it from the total cost to find the discounted total ($270 - $27 = $243). Therefore, the correct answer is A. $243.