Respuesta :

17.50/ 10= 1.75
1.75*15= 875+1750=2625=26.25

answer: $1.75/lb
              $17.50/10lb
              $26.25/15lb
(17.50/2)*3 because 5 pounds of dog food would be 17.5/2 and if you times by 3 you get 15 and $26.25