You are planning to be a reseller of oxygen tanks. The average selling price of the bigger 20lbs tank is Php3,300 and the travel sized 5lbs tank is Php2,000 but as a reseller, you will get a 25% trade discount. You order an initial inventory of 100 20lbs tanks and 50 5lbs tanks, and they arrive on April 15, 2021. The invoice has the following contents: Invoice: AM5051 Date: March 30, 2021 Customer: Breathe Easy Ltd. Item Quantity Published Price per Unit Amount 20lbs Oxygen Tank 100 Php3,300 Php330,000 5lbs Oxygen Tank 50 Php2,000 Php100,000 Delivery fee 1 Php5,000 Php5,000 Broker fee 1 Php2,500 Php2,500 Trade Discount: 25% Terms: 2%/10, ROG a. How much is the total (full) amount due of this invoice? (5pts) b. If you pay Php200,000 your supplier on April 17, 2021, how much is the remaining amount due within the 30-day period? (5pts) c. (Independent of a and b) If the 20lbs tank costs Php2,700, and you want a 50% markup on cost, how much is your selling price? (3pts) d. To keep your bulk customers happy, you usually provide them a 5% discount on oxygen tanks. You also decide to suddenly give a one-day promo giving all buyers that day an additional 5% discount on top of any other discounts normally provided. Using the selling price you calculated in c, how much will your selling price be to your bulk customers? (2pts)