Using the order of operations, what should be done first when evaluating this expression? Negative one-half divided by 2 (9 + 3) minus 4 minus three-fourths (8)

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.

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out