Jayanta is raising money for thehomeless, and discovers each church group requires 2 hr of letter writing and 1 hr offollow-up calls, while each labor union needs 2 hr of letter writing and 3 hr of follow-up. She can raise $125

125 from each church group and $175

175 from each union. She has a maximum of 20

20 hours of letter writing and 16

16 hours of follow-up available each month. Determine the most profitable mixture of groups she should contact and the most money she can raise in a month.