What is the answer to - (2 - 7x) if you simplify

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

What is the value of the expression below? 148+(-6)| + |– 35= 7|