A company discovers that to produce a: = 520 new electronic parts, it will cost 3; = $37100. To produce 390 new electronic parts, it will cost 557'450. Compute the slope of the costs and choose the most accurate statement from the following: 0 Costs are increasing at a rate of $60 per item. 0 Costs are decreasing at a rate of $56 per item. 0 Costs are decreasing at a rate of $55 per item. 0 Costs are decreasing at a rate of $60 per item. 0 Costs are increasing at a rate of $56 per item. 0 Costs are increasing at a rate of $55 per item