Well in order for someone to solve this they would need the function that goes with it. If you just have those then I believe you would just say:
f(0.5)
Answer:
reeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Step-by-step explanation:
A = 1/3 * b * h....divide both sides by 1/3h
a / (1/3h) = b
3a / h = b <===