Terry has a coupon for sunglasses at a store near his house. With the coupon, when you buy one pair of sunglasses, you get the second pair for 30% off. Terry wants to use this coupon to buy two pairs of sunglasses that are each $45. Sales tax is 8%.
First, Terry will buy two pairs of sunglasses for $45 each, totaling $90. With the coupon, the second pair will be 30% off, which is $45 * 0.30 = $13.50 off.
So, Terry will pay $45 for the first pair and $45 - $13.50 = $31.50 for the second pair.
The total cost for the two pairs of sunglasses before tax will be $45 + $31.50 = $76.50.
With an 8% sales tax, Terry will pay an additional $76.50 * 0.08 = $6.12.
Therefore, the total cost for Terry will be $76.50 + $6.12 = $82.62.