Find the minimum and maximum values of z= 2x + 9y, if possible, for the following set of constraints. x+ys7 -x+ys3 2x- ys 10 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The minimum value is (Round to the nearest tenth as needed.) O B. There is no minimum value. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The maximum value is (Round to the nearest tenth as needed.) O B. There is no maximum value.

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