Answer:
ITS 280
Step-by-step explanation:
Rounding - when you solve
27.8 x 9.6 = 266.88
thats nearest to 280
:) Have a great day
Answer:

Step-by-step explanation:
The difference between two consecutive elements is 11.

Hence 
I think it’s B but I’m not sure
It is a good thing to remember. Of course, not all, but some basic numbers that appear all the time such as the numbers from 2 to 13 should be remembered as they appear in numerous assignments and tests.