20/q = 7/9
20×9 = 7q
7q = 180
q = 180/7
The answer is 5x because when you do the math 12 subtracted by 7 equals 5 then you add the x at the end.
Answer- A-16
Because when doing completing the square, you divide the coefficient of x by 2, which is 4, and the square it which is 16
The answer is C 16:20 because both numbers 4&5 are multiplied by four