Helen, Lionel, and Sophie invest $21,000, $9,000, and $16,000, respectively, to build a boat. After the boat was built, Helen decided to sell her share of the investment to Lionel and Sophie. How much would Lionel and Sophie have to pay Helen if they want to maintain the same ratio of their investments in the boat? a. How much would Lionel would have to pay? b. How much would Sophie have to pay? Round to the nearest cent