Please add a picture, otherwise I cannot help you.
Originally Dan has X amount of base ball cards.
So the equation would be
(x+6)/2=29
multiply both sides by 2
x+6=58
subtract 6
x=52
Check your work: 52+6=58/2=29
Answer:
20
Step-by-step explanation:
x/67=29/100
29x67=1943
1943/100=
19.43
Round:
20
