Answer:

round off to 3s.f
means change to when you have 3 useful numbers
7613.83 has 4numbers.2decimal
same must be the round off value
Answer:

Step-by-step explanation:

Answer:
12
Step-by-step explanation:
It has been going down by 6 because 24-6=18 and 18-6=12.
32,767/32,768 is in lowest terms and can't be reduced.