For a concert, there were 206 more tickets sold at the door then were sold in advance. the tickets sold at the door cost $10 and the tickets sold in advance cost $6. the total amount of sales for both types of tickets were $6828. how many of each type of ticket was sold?

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.