Answer:
32.4
Explanation:
So if we divide 54 by 5 we get 10.8 ( her height
then we multiply 2 by her height which is 10.8 and that will give us 21.6 .
the last step is subtracting, So we get Sharon's height which is 54 and subtract that by 21.6 and that will gives us 32.4! :D