How many rabbits and chickens are there if there were 35 heads and 94 legs?

Let the number of rabbits be ( r ) and the number of chickens be ( c ). The total number of heads gives us the equation ( r + c = 35 ), and the total number of legs gives us ( 4r + 2c = 94 ). Solving these equations, we find that there are 23 chickens and 12 rabbits.