Scale Factor is just being multiplied to the width and length.
If 3/3 would be all the students voting and 216 is 2/3 than divide 216 and get 108. 108 is 1/3 so 108+108 is 2/3 and 108+108+108 is 3/3 I believe the answer is 324
The math club must sell 50 pies in order to reach the goal of 200 dollars
If logs are subtracting, you can divide the brackets and if they are adding, you can multiply the brackets. Also, if the number comes before the log, it's can be Taken up as a power. so you end up with:
6log(25-x^2) - [log(5+X) + log(5-X)]
= log(25-x^2) - log(25-x^2)
= log (25-x^2/25-x^2)
= log(1)
log