Suppose that the grade 7 students expect to sell between 100 and 150 hot dogs how many packages of 12 wieners and 8 buns should the students buy if they don't want any leftovers justify your
15 packs of buns and 10 packs of wieners. 8x15=120 and 12x10=120 so if you make all the hot dogs you will have no buns or hot dogs remaining. I hope this helps you out :)
