(1) Miracle Corporation had gross sales revenue of 1,700,000; cost of goods sold of 950,000; sales returns of 52,500; and sales discounts of 30,000. Compute for the year: (a) What is the net sales? (b) What is the gross profit? (c) What is the gross profit rate? (2) Your store sells computers and software. The average computer sells for 1,350, but the customer buying a computer also buys an average of 750 in software. You earn only 10% gross profit rate on sales of computers, but you make a 40% gross profit rate on software. You currently are selling 150 computers per month. What is the total amount of your monthly gross profit? (3) Indicate whether you would expect each of the following businesses to maintain a perpetual or a periodic inventory system. Explain the reasoning behind your answers: (a) A jewelry store. (b) A roadside vegetable stand