please help me solve this long problem and show formula

Problem 1 a) Little James will go off to college in 4 years and will need $12,000 per year over five years for his education. If Abrah's account is expected to earn 7%, how much must she save each year over the next four years? $11,081.76 ($49,202.37 needed at the end of year 4) Page 1 Problem 1 b) Abrah just realized that she needs to have James' colle available at the beginning of each year of college rather th each year. How much must she save each year over the nex have $12,000 per year available at the beginning of each ve years? lames' college funds ather than at the end of over the next 4 years to ning of each year for five $11,857.48 ($52,646.54 needed at the end of year 4) James' college ach year of college rather ves the texty Ich must she sve each year o ning of each year for Abrah just realized that she needs available at the beginning of each year cach year. How much must she save have $12.000 per year available at the begin $11.857.48 (552,646.54 needed at the end of year Problem 1 c) Given Abrah's savings objective from part lb, how muc cach year over the next four years if she begins saving immedi w much must she ving immediately? $11,081.76 ($52,646.54 needed at the end of year 4) Page 2 Problem 1 d) Assume Abrah had started saving 14 years ago when James was born, so she would have saved for a total of 18 years when he starts college in four years. How much would she have needed to save each year to meet his college funding needs if she planned to have $12,000 per year for 5 years, available at the beginning of each year, and she saved at the beginning of each year? $1447.17 ($52,646.54 needed at the end of year 18)