Rewrite in simplest terms: (
−
4
x
−
10
)
+
(
6
x
−
10
)
(−4x−10)+(6x−10)

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?