Answer:
65 ounces 
Explanation:
Number of dogs = 4 
Each day, they ate 13/4 pounds of food
1 pound = 16 ounces 
If 4 dogs eat 13/4 pounds of food 
1 dog will eat x pounds of food
1 dog will eat = (1 * 13/4) / 4 = 13 /16
1 dog will eat 13 / 16 pounds of food each day.
1 pound = 16 ounces
13 / 16 pounds = y ounces 
y = (13/16 * 16) / 1 
y = 13 ounces 
Each dog eats 13 ounces of food daily. 
In five days, each dog will eat 13 * 5 = 65 ounces of food.