How many half steps are there between B and B flat

Name the painting above and its artist. what media was used to create this piece? why do you think the artist chose to use this media for this piece?

Lliana wants to find the perimeter of triangle abc. she uses the distance forumla to determine the length of ab. finish lliana's calculations to find the length of ab. what is the perimeter of triangle abc? round the answer to the nearest tenth, of necessary.

Which design principle is depicted through this image? which is a feature of balance in design?