If you take the original amount 45 and subtract the admission fee 17 you get what is left over which would be 28 dollars. Good Luck and I hope that this helps!!
I am pretty sure the answer is B
6x^2 +30x - 36
6( x^2 +5x -6)
6(x^2 -x+6x-6)
6[ x(x-1) 6(x-1)]
(x-1) (x+6)
Divide 171 by 3 which equals to 57
Thats the unit rate: 57
Divide 45 and 9 it was give you -5