Help pls i don’t understand this

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.

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Me find the value of x each figure.