Why can’t I figure out how to be friends with someone on this app lol

These question are hard can you me with answers

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Describe the relationship between the angles of similar triangles and the sides of similar triangles