How can I result this!

This is the beginning of a new year. Having just graduated from college with a degree in finance, you landed a job as a personal finance counselor with a large wealth management firm. Your very first client is a young couple who want to put their financial business in order and develop a plan for their retirement and future family needs. Both the husband and the wife are 31 years old and in stable employment. They want retire together at the age of 67. They want you to help them in their financial planning by answering a series of questions, as follows: 5. They want to retire with $2 million in savings. They also want to set aside a flat $7,000 every year, at the beginning of each year starting now, as savings toward the retirement goal. What does the saving have to grow in value per year in order for them to achieve their retirement goal? They have no savings for this purpose as of today. 9 6. If the couple want to procrastinate their retirement savings until they reach 35, and if retirement savings will grow at a rate of 8%, how much would they need to save per year, at the end of every year, in order to achieve the $2 million target by the time they retire? They will have no savings for this purpose as they begin their retirement program. 7. Assume they have $15,000 already set aside for the purpose of retirement, how much would they have to save every year, at the beginning of each year starting now, in order to attain the goal of $2 million by the time they retire? Assume they are able to achieve an average rate of return on their savings of 8%. 8. If they have retired with $2 million in savings, and they want to withdraw $120,000 every year for living expenses at the beginning of each year, how long can their retirement nest egg last (in years) if the rate of return on their savings is 5% post- retirement