What is the algebraic expression for the following word phrase: the quotient of 7 and the sum of 3 and z

What is the sum of these mixed numbers 2 1/8 + 4 3/8

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

Is it greater than or less than7*3_9*2