Colin uses a pump to empty the pond the level goes down 20cm in the first 30 minutes

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

Simplify. 3(4+4x) (type your answer in with no spaces)

Nina has prepared the following two-column proof below. she is given that ∠oln ≅ ∠lno and she is trying to prove that ol ≅ on. triangle oln, where angle oln is congruent to angle lno nina made two errors in the proof. identify and correct the errors.