2- 54:81, 54/81
3- 0:101, 0/101
4- 13.5:43.8, 13.5/43.8
Step-by-step explanation:

Answer:
It has to burn at a rate of 2.25 cm per hour.
Step-by-step explanation:
The probability of choosing a large red fish is 5/15 or 1/3
Answer:
look it up
Step-by-step explanation: