The answer is B I’m pretty sure
I think its C sorry if its wrong!
His score changed by 110 points.
Explanation: 3*30=90 & 200-90=110 points
C. (3x+1)(3x-2) 3x times 3x= 9x^2 and 3x times -1= -3x
2 times 3x= 6x and 2 times -1= -2
9x^2- 3x+6x-2
9x^2+3x-2
Hope I explain this more clearly for you.
180537.5 simplified is 180538
