I used Desmos to graph it but here are the coordinates used to graph it in the pictures below.
Now if the lemonade is 1.50 he can only buy two because the total amount is 8.30 so it will be 3.00 and the amount left will be 5.00 and you can only buy one cupcake so you will buy two lemonades one cupcake
X^2 - 3x + 5
2^2 - 3(2) + 5
4 - 6 + 5
3
<1 = <2
vertical angles (congruent)
<3 = <2
corresponding angles (congruent)
so that: <1 = <2 = <3 = 112 degree