Help with math 10 points

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 is the measure of angle x? a.101 b.158 c.44 d.79

Consider the first four terms of the sequence below. what is the 8th term of this sequence?