Answer :

By multiplying the discounted price by the percent which is 22% or .22, and then adding it to the discounted price the regular price will be known.
42*.22=9.24+42= Regular price
The regular price is $51.24
apologiabiology
so 22% off means that the shoes cost 100-22=78%

the shoes cost $42 so
42=78%

we want to find how much is 100% so we multiply 42/78 by 100/x where x is the cost since the same fraction inverted and multiplied by itself is = to 1. (if you don't get this feel free to message me)

so 4200/78x
we divide this on a calculator and get $53.85