Solution and Explanation:
a1) Accounting equation : 
PRAIRIE ENTERPRISES 
Accounting equation, year 3 
Assets = Stockholder's equity 
Cash Land = Common Stock + Retained earnings 
29500 -28000 = 0 + 1500 
a2) 
a2 Gain of Sale of land = $1500 
a3 Cash flow from investing activities = $29500 
b1) Accounting equation : 
PRAIRIE ENTERPRISES 
Accounting equation, year 3 
Assets = Stockholder's equity 
Cash Land = Common Stock + Retained earnings 
24000 -28000 = 0 + -4000 
b2) 
b2 Loss of Sale of land = -$4000 
b3 Cash flow from investing activities = $24000