HELP PLEASE!!!

Select the correct location on the image.
The revenue, cost, and profit functions for a line of cell phone cases is shown. Identify the location on the profit function where the profit from sales of
the phone cases is a maximum.
Total (dollars)
+2,500,000
+2,000,000
1,500,000
+1,000,000
500,000
10
R(x)
P(x)
50
20 30 40
Price per Phone Case (dollars)
60
70

HELP PLEASE Select the correct location on the image The revenue cost and profit functions for a line of cell phone cases is shown Identify the location on the class=