hello I need 10 brainiest for expert or at least 5, if u give me 10 or 5 brainiest ill give points and 1 or 5 brainiest back, (I need to people to answer and ask a question to give me brainiest back )

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Choose the more precise measurement. 26.4 cm or 8.39 cm

Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. identify the domain for each of the given functions.