Answer:
$526.50
Explanation:
You want the cost of an annual membership if the normal price is $65 per month and you have a 25% off coupon. You pay in advance, so save an additional 10%.
Discounted price
The annual membership will cost 12 times the monthly cost, or ...
$65 · 12 = $780
When a 25% discount is applied, the discounted cost is ...
$780 · (1 -25%) = $780 · 75% = $585
Pay in advance
Since you pay in advance, you get an additional 10% off, so you pay ...
$585 · (1 -10%) = $585 - 58.50 = $526.50
You will pay $526.50 for an annual membership by paying in advance.