Price marked on a tag before tax (7%) and 3$ wrapping fee. Total paid with tax and wrapping fee was 122.36 What was the initial price before tax and wrapping

First, subtract the wrapping fee (because tax wasn't paid on the wrapping):  122.36 - 35.00  =  87.36

The equation now is:  (Price) + (7% of the Price)  =  87.36

                                       P + 0.07P =  87.36

                                             1.07P  =  87.36

--->  P  =  81.64

(Actually a total of 87.36 is impossible; if the original amount is 81.64, the tax will be 5.71, for a total of 87.35.

If the original amount is 81.65, the tax will be 5.72, for a total of 87.37.)