Which of the following best describes a regular polygon when the sun of its interior angle is 900? hexagon heptagon octagon pentagon

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

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

Math it's appreciated. (picture provided)