How point, lines, and planes seen in piano

Which technique creates perspective in this image? a. altering color b. different planes c. difference in size d. overlapping objects e. difference in detail

Which of the following american composers was not influenced by jazz? a. george gershwin b. william grant still c. amy beach d. aaron copland

Sorry about the calculator and me asap me asap because for real like some no one answers question one for me so that's why i'm posting them over to that way someone can at least answer number two or one for me if you do you so much if you do it would be a complete big blessing to me