Last month he sold 50 chickens and 30 duck fir $550. this month he sold 44 chickens and 36 ducks for $532

how much does a chicken cost and how much does a duck cost

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)