3. Kwik Delivery Service reports the following costs and expenses n June 206 Driver's saaries Advertising Delvery equpment $ 8,400 $17,000 hdirect materias Depreciationondelivery equipment Dispatcher's salary Property taxes on office 11,200 5,000 repairs Office supplies Office utilities Repairs on office 300 650 2,490 building CEO's salary Gas andoil for delivery trucks 870 2,000 3,200 equipment 80 Determine the total amourt of (a) delivery service (product) costs and (b) period costs. m i rth 4. Erickson, Inc. makes student book bags that sellfor $20 each. For the coming year, management expects fixed costs to be $225,000.Variable costs are $14 per unit (a) Compute break-even sales indollars using the mathematical equation (b) Compute break-even sales using the contribution margin ratio c) Compute margin of safety ratio assumingactual sales are $937,500 d) Compute the sales required to earn net income of $150,000, using the mathematical equation