Casey went to the store and purchase case 12 pairs of socks. And 3 pairs of shoes for 18.20 each. She spent a total of 81.60. How much did she pay for each sock

Casey paid 2.25 in the required currency for each pair of socks.

Step-by-step explanation:

Casey spent a total of $81.60 on both 12 pairs of socks and 3 pairs of shoes.

A pair of shoe = 18.20, then;

3 pairs of shoe = 3 x 18.20

                         = 54.60

The amount spent on socks = total amount - amount spent on shoes

                                              = 81.60 - 54.60

                                              = 27.00

So that,

The price of each pair of socks =

                                                    =

                                                    = 2.25

Casey paid 2.25 in the required currency for each pair of socks.

the solution is 12x-6y