Need help, I'm having trouble relearning formulas for Equations

Module One Quiz Travel Time Each Way Price of a Suit Store (Minutes) ( Dollars per suit) Local Department Store 15 114 Across Town 30 86 A- Neighboring City 60 60 Juanita makes $30 an hour at work. She has to take time off work to purchase her suit, so each hour away from work costs her $30 in lost income. Assume that returning to work takes Juanita the same amount of time as getting to a store and that it takes her 30 minutes to shop. As you answer the following questions, ignore the cost of gasoline and depreciation of her car when traveling. Complete the following table by computing the opportunity cost of Juanita's time and the total cost of shopping at each location. Opportunity Cost of Time Price of a Suit Total Cost Store (Dollars) (Dollars per suit) (Dollars) Local Department Store 30.00 114 Across Town 86 Neighboring City 60 Assume that Juanita takes opportunity costs and the price of the suit into consideration when she shops. Juanita will minimize the cost of the suit if