Answer:
I am a girl and I refuse to do such a horrendous propostoruos futile thing
Your answer is correct, don't worry!
To check your answer, just plug in the answer you got with the variable you are supposed to find. Multiplying by a half is like dividing by two. So, 16 divided by 2 is 8. 8 multiplied by 8.25 is 66.
I'm jealous of your handwriting.. XD
.5 as a decimal and 50% as a percent
The irrational number that can be added to pi to get a rational sum is PI.