The cost of sending an overnight package from kansas city to miami is $23. 50 for a package weighing up to but not including 1 pound, and $3. 80 for each additional pound or portion of a pound. A model for the total cost c (in dollars) of sending the package is c = 23. 50 + 3. 80mc027-1. Jpg, x > 0, where x is the weight (in pounds). What is the meaning of the coefficient 3. 80 in the context of the problem? when the package weighs less than one pound, the price of the package is $3. 80. For every pound that the package weight increases, the price of sending it increases by $3. 80. For every pound that the package weight increases, the price of sending it increases by $23. 50. When the package weighs less than one pound, the price of the package is $23. 50.