Monsters, inc has been accident free for 47 days out of 365 days. What percentage of days have NOT been accident free? (round nearest tenth)

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

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Having a hard time understanding this question (see attachment).