Which set of numbers is the most reasonable to describe the number of desks in a classroom

Which of the following is true for the relation f(x)=2x^2+1

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

]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