a=24; b=12
step-by-step explanation:
a/b=2: 1
a=2b
36/(1+2)=12
b=12
a=24
x² + 11x + 18 < 0
[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2
solution: (-9, -2)
sorry
sorry, but im pretty sure its a now that i look at it
70 years.