What is a c double sharp sound

I'm working on an assignment that has to do with digital art and this is my masterpiece that i've worked on. i was wondering if anyone knew any websites that i could possibly sell my digital artwork? i'd be very appreciated and will gladly mark the right website that does sell digital art as well brainliest! you!

Solve the system of equations below.4x+y=162x + 3y = -2

Nadia is doing research on some aspects of art in japan and china. nadia complete a sentence describing a characteristic of zen buddhist art. zen buddhism is better known ; “calligraphy, ceramics, or domes? ” “and pottery, towers, or ink ” rather than sculptures.