Given functions are


The total number of ducks and swans in the lake after n months can be determined by adding the functions s(n) and d(n).





Taking 2 as common, we get

Hence The total number of ducks and swans in the lake after n months is
Answer:
Step-by-step explanation:
1 can of wet food
_
3 cans of wet food
Or
1:3
Answer: 16
Step-by-step explanation: