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Statistics

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)

How can constraints be used to model a real-world situation?