Answer:
The total amount Connor paid = $181.9
Explanation:
Cost of A-wing Starfighter lego set = 199.99
Coupon = 15%
Sales tax = 7%
We need to find total amount he paid.
First he redeemed the coupon, so we will find 15% of 199.99 and subtract this amount from actual cost
15% of 199.99
Solving:

So, He received discount of $29.99
The cost will be: $199.99 - $29.99 = $170
Now, there is 7% sales tax. We will find 7% of 170 and add that amount to the cost.

So, sales tax will be $11.9
The total amount Connor paid = $170+$11.9 = $181.9