How are salts formed?
a. by the covalent bonding of neutral atoms.
b. by the covalent bonding of oppositely charged ions.
c. by the ionic bonding of a cation and an anion.
d. by intermolecular hydrogen bonding.

the answer is b)3/8x+1

2%? i tried finding the exact sorry if it's not 100% correct ; -;

your spelling is a little off : ]

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.