Answer:
The total amount paid is $ 27.5. 
Explanation:
MAGALI BUY 15 CHOCOLATES AT $ 0.75 EACH ONE, AND 13 PACKAGES OF COOKIES AT $ 1.25 EACH, HOW MUCH SHOULD I PAY?
Number of chocolates = 15 
Cost of a chocolate = $ 0.75 
Packet of cookies = 13 
cost of one packet of cookie = $ 1.25 
The total amount paid is 
= 15 x $ 0.75 + 13 x $ 1.25 
= $ 11.25 + $ 16.25 
= $ 27.5