THERE ARE TWO QUESTIONS BETTER EXPLAINED IN THE PICTURE PLEASE HELP NEED ASAP GIVING 20 POINTS

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x