Answer:
1) He should have found the average of the number of rock songs by averaging 4 and 6 to get 5.
2) He did not multiply the numerator and denominator by the correct number to equal 1,500.
5) He should have multiplied the numerator and denominator by 75, not 30, because 20 x 75 = 1,500.
Step-by-step explanation:
Factor the left side:-
x (19 + r) = -37 + w
x = ( -37 + w) / (19 + r) Answer
If you mean 8x-(12x^2+5x) then the answer would be -12x^2+3x
