Suppose that Helen's marginal income tax rate is 28 percent. Compare her after-tax income and her group medical costs under three scenarios: (a) She receives $45,000 in salary and pays $2,500 for individual medical coverage, (b) she receives $43,000 in salary and group medical coverage on a non-contributory basis with the employer's contribution to the cost of coverage equal to $2,500, and (c) she receives $46,000 in salary and group medical coverage on a contributory basis with the employer's contribution equal to $1,250 and her required (tax deductible) contribution equal to $1,250. What would the difference be between (a) and the other two scenarios if individual insurance costs Helen $2.700 due to a higher expense loading? Suppose that Helen's marginal income tax rate is 28 percent. Compare her after-tax income and her group medical costs under three scenarios: (a) She receives $45,000 in salary and pays $2,500 for individual medical coverage, (b) she receives $43,000 in salary and group medical coverage on a non-contributory basis with the employer's contribution to the cost of coverage equal to $2,500, and (c) she receives $46,000 in salary and group medical coverage on a contributory basis with the employer's contribution equal to $1,250 and her required (tax deductible) contribution equal to $1,250. What would the difference be between (a) and the other two scenarios if individual insurance costs Helen $2.700 due to a higher expense loading