can anyone sub to my youttube channel pls, its called Yakobu, and Im trying to reach 100 subs by the end of the month :)

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

What is the inverse of f(x) = 6x -24

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )