Not completely sure but i think it is 16
X=$7 | 1 Ticket= x | 1 Ticket = $7
891 were sold
.55x1800= 990
10% of 990 roses is 99 (99 is left over)
990-99= 891
Here are some that may help: 1/8, 2/8, 3/8, 4/8, 5/8, 6/8, 7/8
Have a great night! Hope this helped!
A is the correct answer !