The answer to is 15 because your trying to make all of the angles add up to 90, which 45+30= 75 so then you only need 15 more to add up to 90.
I hope you have heard about the congruency rules like SSS, SAS, ASA
Those are the least amount of information you need
Answer:
the slope is 3/5
Step-by-step explanation:
Your question seems to be incomplete
