Musical device can composers use to lengthen a note by double

Which of the following artists is known as the “father of pop art”? a. andy warhol b. norman lewis c. richard hamilton

With the downplay of emotion in classical music music from the period doesn’t usually exhibit the traits necessary for enduring quality

To create an illustration of perspective, this artist did all of the following except 1) show clear orthogonal lines 2) have an implied vanishing point 3) distort proportion to keep the background and foreground the same size 4) include value changes between the foreground and background i was thinking maybe 1