Answer:
$34.85
Step-by-step explanation:
First, find the total amount that Sydney would've payed without the discount:
13+28=41
Then find the discount in dollars:
15%=0.15 as a decimal
41*0.15=6.15
Then subtract the discount from the total amount she would've payed:
41-6.15
As a result, she payed $34.85
