please help me

[indy]

please give the correct answers on this matter, thanks!
x+2y?80;3x+2y?160;5x+2y?200;x?0,y?0
minimum value of the objective form of z = x + y is ... (less the result of 35) :?

 

[Deleted member 4993]

please give the correct answers on this matter, thanks!
x+2y?80;3x+2y?160;5x+2y?200;x?0,y?0
minimum value of the objective form of z = x + y is ... (less the result of 35) :?

Plot the above functions - and evaluate the objective function at the vertices. Determine the maximum value from there.

Please show us your work, indicating exactly where you are stuck - so that we know where to begin to help you.