On the field trip, Abbey, Bethany, Christine, and Darcy bought a total of 4 hot dogs and 3 sodas, which cost the girls $17.00. Edward bought 2 hot dogs and 1 soda from the same lunch stand and it cost him $7.80 before tax. How much would one hotdog and one soda cost before tax?

Answer:6.30$Step-by-step explanation:If you add 7.80$ and 7.80$ that come to 4 hot dogs,The rest of the money is how much one soda cost ( 2.40$ ),Dividing that 7.80$ by 2, To only have one hot dog, would put you at3.90$ fro one hot dog, then all you have to do is add them together, to get the total of 6.30  7.80   |     17.00      |    7.80/2  |    2.40+ 7.80  |    - 15.60     |    3.90     |  + 3.9015.60   |   2.40          |                |   6.30