How do you construct congruent segments, segment bisectors, angles, and angle bisectors using tools such as a compass and straightedge?

How do i get the answer for 2/3 * 10/3

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

What are “like terms”? why can we only add like terms?