3. Find the (a) regular selling price and the (b) cost price of memorabilia items being sold for ₱500 if the mark-up is set at a rate of 25% of the cost price with an approved 15% mark-on rate based on the cost price included because of a special event. 4. Super Mall paid ₱15,000 for a set of dishes. Expenses are 18% of the selling price while the required profit is 15% of the selling price. During an inventory sale, the set of dishes was marked down by 30%. a. What was the regular selling price? b. What was the sale price? c. What was the profit or loss? 5. Harry’s Hardware realizes a markup of ₱34.50 if it sells an item at a markup of 40% of the selling price. a. What is the regular selling price? b. What is the cost? c. What is the rate of markup based on cost? d. If overhead expenses are 27% of cost, what is the break-even price? e. What is the operating profit or loss if the article is sold for ₱75? 6. Aling Ana would like to sell little trinkets she purchased from Divisoria for PhP12 each. If the operating cost is set at 25% of the cost and she would like to have a 15% profit on the cost of each item, a. Determine the mark-up price for each trinket. b. Help Aling Ana determine the selling price for each trinket. 7. Yvette’s Flower Shop imposes a 45% mark-up on flowers delivered to them for sale. During All Saint’s Day, however, an additional mark-on of 25% of the regular selling price is added on. Determine the unit price of 300 roses worth PhP15,000 delivered to Yvette’s Flower Shop during All Saint’s Day. How much is the selling price of each rose during All Saint’s Day at this flower shop? 8. The Cellphone Company buys iPhones at PhP24,000. Expenses are set at 17% of the selling price and the required profit is set at 20% of the selling price. During a weekend sale, the iPhone is sold at 10% discount. A. What is the regular selling price of the iPhone? B. What is the sale price of the iPhone? C. How much did The Cellphone Company gain or lose when the iPhone was sold during the weekend sale?​