Susan's time was 30 seconds + 10 seconds = <<30+10=40>>40 seconds.
Mary's time was 40 seconds * 2 = <<40*2=80>>80 seconds.
Tiffany's time was 80 seconds - 7 seconds = <<80-7=73>>73 seconds.
The total time for the team was 80 seconds + 40 seconds + 30 seconds + 73 seconds = <<80+40+30+73=223>>223 seconds.
#### 223