I believe that's 12 divided by 4 which will leave 3 eggs per cookie recipe.
4x^2 + 5x - 6 = (4x - 3) (x + 2)
You can do it by using the quadratic function to solve 4x^2 + 5x - 6 = 0; the result will be x = 3/4 and x = -2
Then you have to make (x- 3/4) = 0 and (x +2 ) = 0
When you develop x - 3/4 = 0 you get 4x -3 = 0, which means that 4x - 3 is a factor. The other factor is directly x + 2.
Answer: option b: (4x -3)(x + 2)
12*$.73=$8.76-$7.68=$1.08 So it is $1.08 cheaper to buy it by the case.
Hope that helps.
To compare two fraction we have to make common denominator, then we can compare numerators.
Lets do this

Now we can compare numeratos.
3<5, so 1/2 is greater than 3/10.