Which of the following statements correctly describes the items shown below? (Zoom on to see)

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.

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

Add the fractions and simplify 1/2+ 1/3