I need help I don’t know this type of math can someone help me

What is the quotient of 42/3 divided by 4 1/5

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.

Can someone me with this problem . show your work .