Respuesta :

Answer:

The rate is $3.50 per muffin

Step-by-step explanation:

We have 2 points so we can find the slope  (3, 10.5)   (6,21)

m = (y2-y1)/(x2-x1)

  = (21 - 10.5) /(6-3)

   = (10.5)/3

      3.5

The rate is $3.50 per muffin