Which is a characteristic of a solution?

It is homogeneous mixture of two non reactive substance.

They are like other investigations? say there was a murder u have to do blood test and finger prints which run through a lab. 

So what you would do is go through and add 3 teaspoons(tsp) 6 times because of the 6 tablespoons(tbsp). which will give you an answer of 18. another way is to multiply 3x6=18.