Answer:
y = 4.8
Step-by-step explanation:
Since AM is an angle bisector then the following ratios are equal
[tex]\frac{AC}{AB}[/tex] = [tex]\frac{CM}{MB}[/tex], that is
[tex]\frac{9.6}{8}[/tex] = [tex]\frac{y}{4}[/tex] ( cross- multiply )
8y = 38.4 ( divide both sides by 8 )
y = 4.8
