Which expression is equivalent to -3- 3x–1 +x?
O 2r-4
O-2r+ 4
•-2x- 4?
O4-2x

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation:

probably .5

i can on others if necessary.