Breck hardware purchased from black and decker 10 dust busters for $24.95 each. what should breck charge its customers for each dust buster if it has a 39.5% markup on cost?

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.