What is a whole note minus equals a half note

Lines in art can be either actual or

Which music form has a pattern that appears as a-b-a-c-a or a-b-a-c-a-b-a? a. sonata ob. rondo c. minuet d d. theme and variations e. quartet

Paragraph about beethoven's later years of composition and life. did he develop a specific music style or component? how did his music evolve? what was he known for?