Gibson Corporation is a manufacturing company that makes small electric motors it sells for $42 per unit. The variable costs of production are $24 per motot, and annual fixed costs of production are $369,000. Required a. How many units of product must Gibson make and sell to break even? b. How many units of product must Gibson make and sell to eam a $63,000 profit? c. The marketing manager believes that sales would increose dramatically if the price were reduced to $36 per unit. How many units of product must Gibson make and sell to eam a $81,900 profit, if the sales price is set at $36 per unit