Alica bought two burgers and three small fries at Dave's Burger shack for a total of $ 21.18. Jack bought four burgers and two small fries for a total of $29.56. How much does each item cost individually ?

Step-by-step explanation:

Let burger = b and fries = f

Alica:

Jack:

Simplify the second equation and subtract from the first one:

Find the value of b:

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.