Which expression is equivalent to 4(k+2n)?
Group of answer choices

Which statement is true with regard to beethoven? a. ludwig vin kochel catalogued more than six hundred of his compositions. b. he was the official composer for the powerful and rich eszterhazy family. c. he produced the best piano sonatas and the “ninth symphony” after losing his hearing. d. he wrote the well-known opera “the magic flute” during the last years of his life.

Ineed don't know what's in this tell class

Who were the three patrons of the arts mention in this section of the lesson?