All 3 please. Please show math as well.

4. Mary and Kendal both work for Amazon. They both make $60,000 and they also each have $1300 a year in child care expenses. Mary deposits $1300 a year into a dependent care flexible spending account while Kendal does not. They both have a tax rate of 15%. How much does Mary save vs. Kendal in a given year? (3 points) 5. Pete works for a company that provides him health insurance on non-contributory basis. His employer spends $5,000 on this health insurance. What is the pre-tax salary equivalent of this tax free benefit if his tax rate is 30%? (3 points) 6. Andrew is enrolled in a medical plan from his job at Google. The plan features a $2,000 deductible and 85% coinsurance. He breaks his arm and gets treatment at the local hospital. This is the only claim he has all year. The cost of the hospital visit was $4,000. How much does the insurance pay of the $4,000? (3 points)