For a quadratic equation of the form 0 = ax2 + bx + c to have two zeros, what must be true?

So me with this math problem. find the value of x the table shows the masses of 50 eggs. mass: 40-44 eggs: 6 mass: 45-49 eggs: x mass: 50-54 eggs: 12 mass: 55-59 eggs: 10 mass: 60-64 eggs: 7 mass: 65-69 eggs: 2 you!

Brent wants to know what is 5 x 1/2

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?