So i dont get your question. do you need to find out what 3x10^-2 is?
115 degrees because there are 180 degrees in a triangle so let the missing angle in the trinagle be x. Then we have x+75+40=180. Solving for x and subtracting that from 180 (supplementary angles) we get 115 degrees.
Answer:
10:30 A.M
Step-by-step explanation: