Can I write 12.5M instead of 12,500,000? This is my habit of writing millions in 26.5M and thousands in 36k.
For questions with part i) and ii), the definition is written on i). Do I have to restate or refer my explanation on ii) from i)? On the mock, I put the calculations of both i) and ii) in the section under i) by accident. Since we are short on time, for ii), can I box the final answer and say see calculation in i)?