Step-by-step explanation and the answer:
The coordinates to the given constraints are (0,5), (7.5,0), (3,3), (0,7.5), (5,0).
(x,y)=

(0,5)=

(7.5,0)=

(3,3)=

(0,7.5)=

(5,0)=

Min Value would be 25 and Max. Value would be 60.
Let me know if this is correct.