Hi I did a plug and play because I don’t know how else to do it. So I started adding numbers till the tarts equal 20 and then the cherries in the tarts equals 89.
11tarts times* 5cherries is 55 black cherries 7tarts times * 4 cherries is 28 red cherries 2tarts Times* 3 cherries is 6 white cherries 20 tarts and 89 cherries
So with the information☝️in the constraints that makes the statement true above... There are 9 more black tarts on tray than white.
