I believe it is B, as C and D both are based on the number of books sold while the only variable to determine the amount of money she earns are the additional doors she knocks on.
Sum of two opposite angles in a Cyclic Quadiratral is 180°



65 % is bigger than 16/25
Step-by-step explanation:
10×10+24×24= third side ×third side
third side ×third side =100+576
third side × third side=676
third side=√676
third side=26
ummmmmm you dont need the explanation and I'd rather not type but trust me its d, good luck!