(a) What is the regular selling price of an item purchased for $562.50 if the expenses 30% of the regular selling price and the profit is 25% of the regular selling price? The regular selling price is $ (b) During a promotional sale, the item was sold at a reduction of 20%. What is the sa price? The sale price is $ (c) What is the markup based on cost during the sale? The markup based on cost during the sale is % (d) What is the markup based on selling price during the sale? The markup based on selling price during the sale is %