Identify the meaning of a polygon in math

What scale factor was applied to the first rectangle to get the resulting image interior answer as a decimal in the box

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

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