Wiki User
∙ 6y agothe answer is 4
Brianna Mireles
Austin Miller
Isaac Chapley
18
There must be 67 marbles.
17
The fifth line will have 19 marbles. 4 5 7 11 19
10... 9... 8... 7... 6... 5... 4 4 is the answer. ■
1
36
10
18
18
9
33
36
17 -Apex(((:
20
11
There must be 67 marbles.