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Mathematics, 09.11.2020 18:50 renee9913

It costs $83 a day to rent a car plus a required fee for insurance. Suppose the total cost for renting the car for 7 days is $621. Write an equation to model this math situation. How much does the insurance cost? Which one is correct ?
a
581=621+b; b= -$40
b
621=83b+7; b= $7.41
c
621=83(7)+b; b= $40
d
621=83(7)+b; b= $1

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