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5. Kara enlisted her friend Frannie to help shovel all the driveways in her grandma's condominium community. It takes Kara 40 minutes to shovel

5. Kara enlisted her friend Frannie to help shovel all the driveways in her grandma's condominium community. It takes Kara 40 minutes to shovel a driveway and it takes Frannie 45 minutes to shovel the driveway. Write an equation for a function, d, that gives the number of driveways Kara and Frannie can shovel by working together for hours.

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