I can't seem to understand this music note. Could someone tell me the name of the music note and how many beats it is played? Ps: (open this question and look at it when each part is on a new line)
Music Note:
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Where does middle c get its name? a. it sits in them middle of the grand staff b. it sits in them middle of the treble clef c. it sits in them middle of the alto clef d. it sits in them middle of the bass clef

How did shawn mendes change the world? (need this for biography homework❤)

In 1907, the retrospective on the work of 19th century post-impressionist georges seurat influenced the development of cubism in a radical way through his painting titled, “sunday afternoon on the island of la grande jatte.” ? ?