Plz help me with these three questions, Thank you!

Linda Williams anticipates needing $460,000 to start a business. If she can earn 6.4 percent compounded annually on her investments, how much money would Linda have to invest today to have $460,000 in 3 years?

Linda Williams anticipates needing $460,000 to start a business. If she can earn 6.4 percent compounded annually on her investments, how much money would Linda have to invest today to have $460,000 in 3 years? (Do not round intermediate calculations and round your final answer to the nearest penny.) Amount to be invested today $ You have an opportunity to invest $4,000 today and receive $4,500 in three years. What would be the return on your investment if you accepted this opportunity? (Round answer to 2 decimal places, eg. 52.75.) % Return on investement Blossom Sales Company has sales of $1,000,000. If the company's management expects sales to grow 4.00 percent annually, how long will it be before sales double? Use financial calculator to solve this problem. (Round answer to decimal places, e.g. 20.) Time needed to double its sales years