In one day, Ella's dog eats 4 pounds of food for every one pound of food that Ella eats. How much food do Ella and her dog in 10 days if Ella eat 20 pounds of food each day?
If Ella's dog eats 4 pounds of food for every one pound of food that Ella eats, when Ella eats 20 pounds of food in a day, Ella's dog eats 4*20 = 
<gadget id="calculator">4*20</gadget>
<output>80</output>
80 pounds of food.
Together, in one day, Ella and her dog eats 80+20 = 
<gadget id="calculator">80+20</gadget>
<output>100</output>
100 pounds.
In 10 days, Ella and her dog will eat 10*100 = 
<gadget id="calculator">10*100</gadget>
<output>1_000</output>
1000 pounds of food.

<result>1_000</result>