If 12 cookies cost $2.88, How much would 2 cookies cost?

One way is just to recognize that

2.88=12 cookies

konw that

12/6=2

so divide both sides by 6

0.48=2 cookies

2 cookies is 48 cents

ratio and proportaion way

cost:cookies=2.88:12

cost of 2 cookies is x

2.88/12=x/2

times both sides by 12

2.88=6x

divide both sides by 6

0.48=x

the cost is 2 cookies is $0.48 or 48 cents

8.33 i think it's 12/2.88 and you multiply the ans you get by 2