It's evident that the two angles in question are complementary, which equal up to 90 degrees. So what answer choice, added to m1 (37 degrees), equals 90 degrees? By using inverse operations, we can conclude that the answer is A because 90 - 37 = 53.
-645 you can't simplify any further
the answer is in the picture above
23.5 in expanded form:
20 + 3 + .5
