The chord that goes through the center of a circle, the diameter, is the longest chord in a circle. Any other chord will be shorter than this. The farther a chord is away from the circle, the shorter it will be. This means that chord CD is shorter than chord AB.
If the first function is
.. h(x) = 2^x
it will be the one that grows the fastest. The exponential function with the largest base value will grow faster than any polynomial.
You just convert 3/10 into 30/100 and add 30/100 + 4/100 which is equal to 34/100 and if you simplify it's equal to 17/50
Since the amount of money earned is based of of the amount of pies he sells...
y = 14x
Hope this helps!