The GCF stands for greatest common factor. To represent a sum by its GCF we need to use the distributive property and we need to first find the GCF of the numbers. Let's break each number by its factors:

We now multiply the numbers that appear on both.

We now apply the distributive property:
Rewrite the limit as

Then both numerator and denominator approach infinity (with different signs, but that's not important). Applying L'Hopital's rule, we get

What is the system? (Is there supposed to be an image?)
You said how many pieces can be cut...3 pieces can be cut
Answer:
108
Step-by-step explanation:
- Base+Base÷2 × height
- 10+7+7=10+14
- 24÷2=12
- 12×9=108