Please answer problems 5,6,&7. Please show all work for a thorough understanding. Handwriting MUST be LEGIBLE.

5. Holly wants to have $200,000 to send a recently born child to college. She sets up a 529 plan and wants to know how much she must invest at the end of each year for the next 18 years if the funds can earn 5 percent. If she can earn 7 percent, how much less will she have to invest each year? 6. A widow currently has a $93,000 investment that yields 6 percent annually. Can she withdraw $14,000 for the next ten years? Would your answer be different if the yield were 9 percent? 7. An investment will generate $10,000 a year for 25 years. If you can earn 10 percent on your funds and the investment costs $100,000, should you buy it? Would your answer be different if you could earn only 7 percent