A graph of the following data set of integral values (head counts) would show a gap containing which points?

{10, 5, 2, 7, 6, 2, 2, 1}

1, 2
3, 4
5, 6
5, 7

Last month, leonhard euler's watch kiosk at the mall had total sales of $9,489. merchandise totaling $225 was returned. the goods that were sold cost leonhard euler's $5,481. operating expenses for the moth were $992. what was the gross profit on sales?