Pg 518 (450) - Q6
The inequality s – t < -3 limits (s, t) to an ordered pair in
which t must be greater than s by more than 3. Only (1, 8) satisfies
this condition. You can plug the ordered pairs in for (s, t) to test
which satisfies the 2 inequalities. You will find that only (1, 8)
satisfies
1 + 8 > 2 and 1 – 8 < -3. The answer is C.