Final answer:
Rodrigo will pay $54 for the jacket after applying a 1/4 off sale discount on the original price of $80 and an additional 10% off coupon.
Step-by-step explanation:
Rodrigo is interested in buying a jacket with a sale and an additional coupon discount. The original price of the jacket is $80, and it's being offered at 1/4 off the original price. To find the sale price, we calculate 1/4 of $80, which is $20, and subtract it from the original price, which gives us $60 as the new price after the discount.
Next, Rodrigo has a coupon that gives him an additional 10% off. To calculate this, we find 10% of the discounted price ($60), which is $6. So, we subtract the $6 from the $60 to get the final price Rodrigo will pay for the jacket, which is $54.
So, Rodrigo will pay $54 for the jacket after applying both the sale discount and the coupon discount.