sofia0910
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  • 14-11-2022
  • Mathematics
contestada

the cost of using a parcel service is r dollars for the first 3 pounds and s dollars for each additional pound. which of the following expressions represents the cost, in dollars, of sending a parcel that weighs 9 pounds?

a) r+3s
b) r+6s
c) 3r+6s
d) 3r+9s
e) 9r+9s

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