Please solve quickly

A software engineer had been offered $60,000 per year for the next 10 years (t=1-10) and then $90,000 per year for the following 15 years (t=11- 25) for the rights to his new smart phone app. At 5% annual interest rate, how much is this offer worth at the end of the 25th year? (i.e., F25=?) approximately 4.173 Millions approximately 3.034 Millions approximately 2.137 Millions approximately 2.654 Millions approximately 3.511 Millions A company undertakes a multi-year project that requires multiple annual payments. First payment starts at the end of year 3 in the amount of $100,000. It will then increase by $10,000 each subsequent year and the last payment is made at year 10 in the amount of $170,000. The interest rate is fixed at 6% a year. What is the present worth (t=0) of this series of cash flows (arithmetic series)? 883,007.85 827,547.83 729,262.02 O 776,434.48 856,018.52 A company undertakes a 10-year project that requires annual payments. Payment for the first year is $50,000. It will then increase by 4% each subsequent year. The interest rate is fixed at 4% a year. What is the Present Worth of this cash flow? 480,769.23 190,476.19 283,018.87 288,461.54 384,615.38