Answer:
68719476736
Step-by-step explanation:
Use a system of equations.
(x=# of small dogs, y=# of big dogs)
x+y=9 (times by -5) -5x-5y=-45
5x+8y=51
Then add the equations together and the x's cancel.
3y=6
y=2
So he walked 2 big dogs and 7 little dogs.
For 3.99 each ounce is 12 cents an ounce while the 48 ounce is 10 cents an ounce. So I think it would be the 48 ounce please mark brainliest