Please check my first answer too, I'm not sure if it is correct, thank you so much!

Many academic institutions offer a sabbatical policy. Every seventh year a professor is given a year free of teaching and other administrative responsibilities at full pay. For a professor earning $50,000 per year who works for a total of 42 years, what is the present value of the amount she will earn while on sabbatical if the interest rate is 6% (EAR)? Note: Assume that the sabbatical annual salary is paid in one lump sum every 7 years. The equivalent discount rate is \%. (Round to three decimal places.) The present value of the amount she will earn on sabbatical is $ (Round to the nearest dollar.)