sasha rents a market stall selling jewellery. she makes most of her jewellery herself but she also buys in items from large manufacturers. her only other variable cost is the pay of her sales assistant who receives a small payment for each item she sells. sasha wants to expand her business and she found out that there us an empty shop near her home . the fixed costs of the shopare 3 times greater than those of the market stall . what are the advantages and disadvantages sasha has of being the only owner if her business?