Suppose that the monthly cost in dollars of producing x chairs is C x 0 007x3 0 07x 2 19x 700 and currently 40 chairs are produced monthly a What is the current monthly cost b What is the marginal cost when x 40 c Use the result from part b to estimate the monthly cost of increasing production to 42 chairs per month d What would be the actual additional monthly cost of increasing production to 42 chairs monthly a The current monthly cost is Round to the nearest cent as needed b The marginal cost when x 40 is per item Round to the nearest cent as needed c Use the result from part b to estimate the monthly cost of increasing production to 42 chairs per month The monthly cost in increasing production to 42 chairs monthly is Round to the nearest cent as needed d The actual additional monthly cost of increasing production to 42 chairs monthly is Round to the nearest cent as needed