Answer:
a) Priscilla Wescott's
Cash budget
                                 Months
                    Sept.       Oct.       Nov.      Dec.
beginning balance      8,220     3,220      3,330      3,340
football tickets         -110
other entertainment    -290       -290       -290       -290
semester tuition       -4,400
rent                  -400       -400       -400       -400
food                 -220       -220       -220       -220
apartment deposit      -600                           600
part time jobs earnings  1,020      1,020      1,020      1,020
ending balance         3,220     3,330      3,340      4,150
b) This is a static budget because it is being prepared in advance. A flexible budget adjusts a static budget to the real cash outflows and inflows.
c) The spring semester tuition costs $4,400 and she will only have $4,150, that means she will be $250 short.