If you can find an explicit formula for a sequence, you will be able to quickly and easily find any term in the sequence simply by replacing n with the number of the term you seek. An explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location).
It will take 4.75 days, or 4 and 3/4's of a day if that's what you're looking for
The answer should be C
54*30/100= 16.2
54-16.2 = 37.80