The five musicians known as the "mighty handful" expressed russia's essence in their music by

The Mighty Handful musicians which comprised of Balakirev and his four composer disciples: Alexander Borodin, Cesar Cui, Modest Mussorgsky, and Nikolai Rimsky-Korsakov. They all centered their songs through Russian folklore, using folk songs as well as utilizing the folk instruments. 

2.25 because you subtract the two

Answerencaustic and fresco;