A cell phone company is marketing their new package to teenagers. They would like to know what an appropriate price would be, so they decide to survey a random sample of teenagers. What would need to be adjusted in this sample for it to be more valid?

]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