please show work im stuck on these two! thanks in advance

You have $37,500 invested in KO, $46,000 invested in TSLA, $42,700 invested in PG, and $58,900 invested in SYK. What are the portfolio weights for each company? Consider a project that costs $100,000 to start and has cash flows of $45,000 in year 1, $65,000 in year 2, and $34,000 in year 3. a. If your firm's required return is 10%, what is the NPV and IRR for this project? b. What is this projects payback period