Answer:
4:7
Step-by-step explanation:
18+24=total number of fish=42
silver fish amount= 24
therefore, ratio is 24:42=12:21=4:7
Answer:
C
Step-by-step explanation:
Answer:
change, always change
Step-by-step explanation:
Answer:
the answer is 24
Step-by-step explanation:
68-38 = 24
The form of sampling you are looking for systematic sampling