One terabecquerels, or 1000000000000 becquerel - depending on what you mean by "long hand".
1,000,000,000,000 becquerels
You can write "equals". It would be perfectly fine to say "2 + 2 equals 4". It's jsut that, it's much more common to use "=", just because it's easier probably.
The second version (mN) would likely be confused with milli-newton.
-4
Probably 0.198% Thats how I would do it.
1.7 because 100 % equals 1 it would always be over 1
it equals to 8.10
Expressed with the equals sign at the end, this sum would be written: 8 - (3 + 2.8) = 2.2
159x - 297 = 386.7
To write 0.987 as a percentage, multiply it by 100 which equals 98.7%
0.08n=1.2
Yes.