Atrait has two alleles, and their frequencies are represented by p and q. if p = 0.68, what is q

As per Hardy Weinberg Principle, in a population mating in a random manner without any evolutionary force, the allele frequencies remains constant from generations to generations

Thus, sum of P and Q,  

P = frequency of common allele

Q = Frequency of less common allele

Remains constant.  

P + Q = 1

If P = 0.68

Then Q = 1- P

= 1- 0.68

= 0.32

the bald eagle got 50 because everything gets 10% of what they consume and since 50 is ten % of 500 hundred that means the   grasshopper had to have consumed a plant with 5,000 calories of energy