Can you explain to me what is wrong with this question?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Put the following steps for calculating net worth in the correct order

Francis is getting new carpet tiles in his living room and den. his living room and den are connected. he needs to figure out how much carpet he needs and the cost involved. if each tile costs $2.00 per sq ft, how much would it cost to have new tile put in the den? a) $24 b) $36 c) $48 d) $54 plz awnser soon