Kennedi Stapleton, a widow, has take-home pay of $4,200 a month. Her disability insurance coverage replaces 70 percent of her earnings after a 90-day (3-month) waiting period. a. What amount would she receive in disability benefits if an illness kept Kennedi off work for 270 days (9 months)? (Omit the "\$" sign in your response.) Disability benefits $ b. What if her disability started when she was age 20 and was severe enough that it lasted until she was 50 years old? (Omit the "\$" sign in your response.) Disability benefits $