Answer:
 $896
Explanation:
Step one:
given data
Nadia is a stockbroker. She earns 14% commission each week.
we are told that last week she made sales worth $6,400 
Required
The worth in dollars of 14% of $6,400 
Step two:
=14/100* 6400 
=0.14* 6400 
=896
Hence the commision earned is $896