Section 8.1

(12) The saddle value is 0, in the first row, second column.
The value of the game is 0.
Optimal strategy: R should always play row 1; C should always play column 2.

[
1
  
0
  
3
  
1
-5
  
-2
  
4
  
-3
]

(16) There are two saddle values illustrated in blue. The value of the game is 1.

[
1
-2
0
3
-5
0
-1
8
4
1
1
2
]


Optimal strategy: R should always play row 3; C can choose between columns 2 and 3.

(24) Saddle values are blue. Value of the game is 5870 (that's good for you).
Optimal strategy:
For you: play row 1 (invest in 5-year notes)
For the economy: Play either column 1 or 2 (either fall, or no change)

[
5870
5870
5870
-2000
4000
7000
-5000
2000
10,000
]