Simplify the expression 1 + 4.25n + 3/2p -3 + (-2p) + 5/4n

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.

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

Collin did the work to see if 10 is a solution to the equation r/4=2.4