please explain how you came to each answer. thanks!

5. BeFair Corporation has $30 million to allocate to the various projects of its three subsidiaries for the next year. BeFair has established that at least one project from each subsidiary must be funded. The profit (return-investment) at the end of the year and the required investments are given in the table below for each project, where projects 1 to 3 belong to sub- sidiary 1, projects 4 to 6 belong to subsidiary 2, and the rest belong to subsidiary 3. PROJECT PROFIT (IN INVESTMENT MILLION S) (IN MILLION S 0.50 1.40 1.70 12 1.10 4.00 0.60 2.50 110 15 10