Help ASAP The ratio of two side lengths for the triangle given.Solve the variable.

Answer:
a = 3
Step-by-step explanation:
AB/AC = 7/8 = 14a/48
7/8 = 14a/48
Multiply both sides by 8.
7 = 14a/6
Multiply both sides by 6 and switch sides.
14a = 42
a = 3