Is it possible for a system of two linear inequalities to have every point in the lane as solutions why or why not

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

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

What type of symmetry does a rhombus have?