630 tickets were sold for the fair 70% of the tickets were used. how many were used?

State if the two triangles are congruent. if they are, state how you know?

10x − 5y + 14 = 0 whats the answer pls

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?