Can you help with the stuff up top, if you can explain it that would be helpful

When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext

Afootball is throw by a quarterback to a receiver

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g