The price of the camera is after the 40% increase, would be $378.
Since the camera's original price was $450, and there was a 40 percent discount, you first find the discount of the original cost. Multiply $450 by 40% (0.4) to get $180. You then subtract $180 from $450 to get $270. Now they added a 40% increase in price, but this increase is for the current cost $270. So, you multiply $270 by 40% (0.4) to get $108. Finally add $108 to $270. Thus getting $378 as a final answer.
The centroid is the average of the coordinates of the three vertices. If you know two vertices (A and B) and the centroid (Q), then the third vertex (C) is ...
