Answer:
$1272.008264
Step-by-step explanation:
If the mark-up was 21%, then the final price is 121% of the original price. Simply divide $1,539.13 by 1.21 to get the original price of $1272.008264
Answer:
The answer is: 1, 2, and 6
Step-by-step explanation:
One way to do this is to notice

Then

We have

and since
has a period of
,

and so
