Find the area 12 6 5 14

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

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities