90 seats are on the right and 60 seats are on the left.
Add 3/4 which becomes 16/4 which becomes 4
2 litres every 2.5 minutes is 4 litres every 5 minutes so therefore, it is 0.8 litres/minute (800ml per minutes)
I think it might be 90 degrees
Clark made 14 and Shelly made 19.
33-5=28
28/2=14
Clark=14
14+5=19
Shelby=19