Please find x please

43

Explanation:

All the angles in a triangle add up to 180, so 47+90(right angle) is 137. 137-180 is 43. x=43

c, d, e, f, g, a, b, and c.

sometimes western music will also use solfege. the names of these are do ra me fa sol la si (or ti) and do.

to indicate a note a half step higher or lower then the original note, you would say c # (for a half a step above c) or bb (for half a step below b)