There would be an open circle on positive 12 with the arrow moving to the right.
AD > EC
the 25° angle is more inclined than the other
The answer is D hope this help
If you are doing a literal equation all you have to do is isolate the h.
First get rid of the fraction by multiplying both sides by 2.
2a=bh
Then divide both sides by b.
2a/b=h
Hope this helps!