C. (e-9) / 2
E-9 has to be in parentheses because of Pemdas
2/3(18)
=12
x=12
2x-3
2(12)-3
24-3
21
Answer: (4x + 5)/3
Explanation:
D = x
H = x + 5
R = 2x
Mean = (D + H + R)/3
= (x + x + 5 + 2x)/3
= (4x + 5)/2
Ok what was it then...I could answer it....well depends what type of question it is
