The following information about the electricity cost of your house for the first six months: Month kilowatt Hours Cost of electricity 1 2 3 4 5 5600 5000 7000 6200 5500 6800 970 859 1200 990 960 1160 By using excel: Find the cost equation for electricity cost and estimate it for July if expected maintenance hours is 5500 hours. Why is there difference between your number and what included in May. The following information from mother factory in 2020: Direct Materials 3200 Fixed manufacturing cost Variable marketing cost Fixed marketing cost Sales @ $20per unit Beg. Inventory in units Production in units Variable manufacturing cost 1800 Direct Labor 2400 1400 400 450 15500 0 800 Compute: 1. manufacturing costs under absorption, variable, and throughput costing systems per unit 2. period costs under absorption, variable, and throughput costing systems per unit 3. Prepare income statement under absorption and variable costing system.