The universally accepted film size for movies has a width of 35 mm if you want to project a movie onto a square sheet that has an area of 100 square meters what is the scale factor that is needed for the projection of the movie

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

Can any one me with the answers to these questions asap?

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?