exam Maths Puzzle Numerical Ability

A box of anthony thomas candy contains 9 dark chocolate creams, 6 milk chocolate creams, and 4 milk chocolates with nuts. How many ways can 5 candies be selected to meet each condition?

2 of one kind, 3 of another.

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exam Other Question

Given: (segment)AB is parallel to (segment)CD; (segments)AD and CB are congruent; (segments)AD and CB bisect each other at X.
Prove: triangle ABC is congruent to triangle CDA Determine the nature of the solutions of the equation.

x^2 + 3 = 0

Does it have:

2 imaginary solutions
2 real solutions
1 real solutions

I do not know how to determine this.