Based on the cost of Rachel's health insurance to the employer, the employer's after-tax cost is $4,740.
This can be found as:
= Before tax cost of health insurance x (1 - marginal tax rate)
Solving gives:
= 6,000 x (1 - 21%)
= 6,000 x 0.79
= $4,740
Find out more on after-tax costs at https://brainly.com/question/15052097.
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