"the sum of triple a number and 8"

This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.

The answer to your question is 2

Wouldn’t it be six if all intervals are the same?

Just use long division to write it out