Leo had a $30 gift card to use at a coffee shop. He used the entire balance to buy regular-sized coffees, which cost $2, and large coffees, which cost $3. If he bought 13 coffees in total, how many large coffees did he buy?
Select all that apply.
A. 2x+3y=30
B. 2x+3y=13
C. x+y=13
D. x+y = 30