Select whether the equation has a solution or not. \sqrt(x)=7 a. roots b. no roots

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

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent

Will give a: 122 b: 90 c: 48 d: 180