3. A business is considering purchasing a machine that is projected to yield cash, savings of $1,000 per year over a 10-year period. Using a 12 percent discount rate, calculate the present value of the savings. (Assume that the cash savings occur at the end of cach year). 4. Yolanda William is 35 years old today and is beginning to plan for her retirenment. She wants to set aside an equal amount at the end of each of the next 25 years so that she can retire at age 60. She expects to live to an age of S0 and wants to be able to withdraw S50.000 per yer from the account on her 61" through so" birthdays. The account is expected to eam 10 percent per year for the entire period of time. Detemine the size of the anmal depasits that she must make