Have yall ever talked with a tutor on here ??? if you had is it akward

In the above painting by salvador dalí, entitled persistence of memory, which of the following objects do not occupy positive space? a. the clocks c. the tree trunk b. the ground d. the cliff select the best answer from the choices provided

Match the instrument with its classification group: trumpet idiophone piano chordophone cowbell membranophone snare drum aerophone

The arrangement of the pitches in a piece of twelve tone music is called