I believe #7 would be 5:13, #8 to be 6:7, #9 to be 13:18, #10 to be 18:5.
I hope this helps.
THE ANSWER IS B!!! you just increase the quotient by 1 because you still need an extra page for the remaining cards
You did it right. 1.35 + 7.00 and you have the right answer. is that what you mean?