What are some differences and simalatiries between muscle cells and nerve cells?

The main difference between muscle and nerve cells is their structure and function. Muscle cells form muscle tissues which contract and relax muscles both voluntarily and involuntarily. Nerve cells form nervous tissues which rapidly receive and analyze information from a person's environment to produce an appropriate response. 

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.