Alocal true value hardware store marks its goods up 38% on cost. if a snowblower cost true value $400, the selling price would be:

There are several information's already given in the question. Based on those given information's the answer can be easily deduced.

Percentage by which a local
True Value Hardware Store marks its goods up = 38%
True value of the snowblower = $400
Then
Selling price of the snowblower = (138/100) * 400
                                                   = 552 dollars

From the above deduction, it can be concluded that the selling price of the snowblower would be $552. I hope the procedure is clear enough for you to understand.