Need asap

the pitch of a sound is its highness or lowness. the higher the frequency of a sound wave is, the higher its pitch.

the waves shown below represent sound waves. which of the waves would have the highest-pitched sound?

The first one

Explanation:

The waves on the first image are the highest in frequency meaning they have the highest pitch.

the 1st one

Explanation:

The 1st one

the 3rd one is the lowest for reference of the differences

low(long distance between waves)

high (short distance between the waves)

Hope this helped!

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.