Anna, age 35, wants to retire at age 65. She earns $38,000. She has earned 7% on investments. Inflation is...

Anna, age 35, wants to retire at age 65. She earns $38,000. She has earned 7% on investments. Inflation is averaging 2%. She anticipates that her life expectancy will be 87. Her WWR is 90%. Her Social Security benefit will be $10,000. After she retires she expects her investments to earn 6%.
How much does Anna need to save, at month end, to accumulate the capital that she will need at retirement? Use annuity, capital preservation, and purchasing power preservation method.