Given that
a=3
b=3
c=2
The number and kind of roots depend on the Discriminant of the equation .
Formula for the Discriminant ,D is given by this

So using the formula we get that

Concept is that if the Discriminant is negative then no real solution is possible ,
here using the Discriminant formula we have got the Discriminat value as -15 which is a negative number so we say there is no real solution for the given information .
Hence <u><em>C</em></u> is the correct option .
To combine like terms and single out one term to take it easier to solve, the 6x was moved to the other side to combine like terms.
Subtracting 6x from 10x which is 4x
10% of 450 = 450*(10/100)
= 450 * (1/10)
= 45
final amount = 450 - 45
= 405