Answer:
Constraints:

Step-by-step explanation:
Let x represents the number of cards and y represents the number of cupcakes.
Carrie decides to sell cupcakes for $0.50 each.
Total amount earned from selling cupcakes 
Juanita decides to sell homemade cards for $2.25 each.
Total amount earned from selling cards 
As Carrie and Juanita need at least $125 to cover their start up costs,

Juanita plans to make at least 35 cards.

Carrie plans to sell cupcakes no less than 3 times the number of cards Juanita makes.

Constraints:
