market research inc. has a contract to do a consumer survey for proctor and gamble. market research gets paid $10 for every completed consumer survey. the costs incurred by market research are $300 for fixed costs and $o. 15 per consumer contacted (whether or not they complete the survey) as variable costs. if the response rate is 2.5%, what should be number of consumers who have to be contacted (whether or not they complete the survey) so that market research can break even?