Two enterprising college students decide to start a business. they will make up and deliver helium balloon bouquets for special occasions. it will cost them $39.99 to buy a machine to fill the balloons with helium. they estimate that it will cost them $2.00 to buy the balloons, helium and ribbons needed to make each balloon bouquet. which of the following expressions could be used to model the total cost for producing b balloon bouquets? $2.00b  + $39.99$37.99b$39.99b  + $2.00$41.99bsave