(Geometry) WILL GIVE BRAINLIEST. Also, more similar questions are on my page please help!

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

]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