need hwlp ASAP with part B I post this question twice and they answer it worng please provide the correct answer ....

Edward manages an electronics store where customers can purchase phones, tablets, or accessories for their technology needs. He is trying to plan for future profitability and came upon a break-even number ( 80 units in monthly sales) that his predecessor. Annie, had calculated. Unfortunately, Edward found no other supporting calculations or details to determine how many of those units were phones, tablets, and accessories. Realizing that he needs as much cost, volume, and revenue information as possible, Edward dug up the following information for the store. Based on the above information, what is the sales mix for the three products? At the break-even point. how many of the 80 units must have been phones? units