please help, will mark brainliest!! thanks

Answer:
39.43 for each dog
Step-by-step explanation:
d = 2c (given)
164 c + 23 d = 4140 sub in the above equation for d
164 c + 23 (2c) = 4140
210c = 4140
c =19.71
d = 2c = 39.43