Answer: 
Equation: 1 apple pie = 10 apples + 2 crusts + 1 tablespoon of cinnamon.
You will need 250 apples to make 25 pies.
Step-by-step explanation:
Hi to answer this question we have to analyze the information given: 
Apple pie: 
- 10 large apples 
- 2 crusts 
- 1 tablespoon of cinnamon 
So, the equation for 1 apple pie would be: 
1 apple pie = 10 apples + 2 crusts + 1 tablespoon of cinnamon 
For 25 pies, we simply multiply each side of the equation by 25: 
25 x (1 apple pie) = 25x (10 apples + 2 crusts + 1 tablespoon of cinnamon ) 
25 apple pies = 250 apples + 50 crusts + 25 tablespoons of cinnamon) 
So, you will need 250 apples to make 25 pies.