Adam spent $10,000 on new equipment for his small business, "adam's fitness studio". membership at his fitness center is very low and at this rate, adam needs an additional $12,000 per year to keep his studio open. which of the following is true? a) the $10,000 adam spent on equipment is a fixed cost of business and the $12,000 he'll need to continue operations is a variable cost. b) the variable cost of running the studio is $22,000. c) the fixed cost of running the studio is $22,000. d) the $10,000 adam spent on equipment is the total cost of starting the business and the $12,000 he'll need to continue operations is a marginal cost.