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------------------------------------------------ Jonathan runs a farm stand that sells raspberries and bananas. Each pound of raspberries sells for $3, and each pound of bananas sells for $3.50.

1. How much would Jonathan make if he sold 20 pounds of raspberries and 15 pounds of bananas?

2. How much would Jonathan make if he sold [tex]r[/tex] pounds of raspberries and [tex]b[/tex] pounds of bananas?