Mrs. Grapes thought she would have 13 hybrid students show up for her Tuesday class but actually only 10 signed up. What was her percent error?

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle