Answer:
I believe the correct options are 1, 4, and 5.
Yes, equilateral triangles are 60 degrees unlike right angles that are 90.
Answer:

Step-by-step explanation:
To find the inverse of this function, you need to replace the location of the x and the y.
You start with
. Now, replace the x and the y, and try to isolate the y.

Hope this helps!