Please I need some answers

What value of x will make the triangles similar by the sss similarity theorem?

Adiverr from the university of florida women’s swimming and diving team is competing in the ncaa zone b championships

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?