Answer:
see below
Step-by-step explanation:
1.03 * x = 92 x = prior percentage
92 / 1.03 = x = 89.32
She HAD a 89.32 percentage score
increasing this score 3% reults in a score of 92
It is most likely 14 units so it would be A. I think.
You haven't provided the required roots, but I can tell you how to do this kind of exercises in general.
If the
coefficient is 1, i.e. the equation is written like
, then you can say the following about the coefficients b and c:
is the opposite of the sum of the roots
is the multiplication of the roots.
So, for example, if we want an equation whose roots are 4 and -2, we have:
So, the equation is 
If your roots are rational, you can work like this: suppose you want an equation with roots 3/4 and 1/2. You have:
And so the equation is

In order to have integer coefficients, you can multiply both sides of the equation by 8:

17/24.
Explanation:
24/24 is your original amount.
24 - 7 = 17.
So now you have 17/24! :D