Step-by-step explanation:
360 one gon 18 therefore 18*20=360
D, as a frame goes around the entire photo, so having the perimeter would show the length of wood needed to surround the photo.
The sub dives 37 feet....thats -37...it rises 16 ft....-37 + 16 = -21...then dives 18 ft.....-21 - 18 = - 39 ft
so the net change is -39 ft
12.50 espero que te sirva :)
My guess would be guess A