How many boxes can fit in these bigger boxes?

[furby]

You have a box of marbles measuring 7.25" x 5.5" x 1.75". How many of boxes of marbles can fit in the following shipping boxes?

a.) Shipping Box #1 measures 11" x 8.5" x 5.5".
b.) Shipping Box #2 measures 11.75" x 13.5" x 3.75".
c.) Shipping Box #3 measures 23.5" x 11.75" x 3".
d.) Shipping Box #4 measures 12" x 12" x 5.5".

 

[stapel]

You have a box of marbles measuring 7.25" x 5.5" x 1.75". How many of boxes of marbles can fit in the following shipping boxes?

a.) Shipping Box #1 measures 11" x 8.5" x 5.5".
b.) Shipping Box #2 measures 11.75" x 13.5" x 3.75".
c.) Shipping Box #3 measures 23.5" x 11.75" x 3".
d.) Shipping Box #4 measures 12" x 12" x 5.5".

What are your thoughts? What have you tried? How far have you gotten? Where are you stuck?

Please be complete. Thank you!