Answer:
Answer is 15.78% , hence option B is correct
Details? you need to add the whole question
^^ they’re right so hope it helps
First you need to know the definition of a complementary angle. That means that two angles add up to 90 degrees, or a right angle.
To find an angle complementary to a 78 degree angle, you need to subtract 78 from 90.
90 - 78 = 12
