Hi there!
Here are the important information we know:
1 box = 35 beads = $1.60
Jody has 1,400 beads
1. You'll have to use the cross product method 2 times to find your first answer :
1 box = 35 beads
X box = 1,400 beads
(1 × 1,400) ÷ 35 = X box
1,400 ÷ 35 = X box
40 = X box
This means that Jody bought 40 boxes of beads in order to have a total of 1,400 beads.
1 box = $1.60
40 boxes = $X
(1.60 × 40) ÷ 1 = $X
64 ÷ 1 = $X
64 = $X
This means that in order to have a total of 1,400 beads, Jody had to pay $64.
2. To answer your second question, you'll need to divide the total amout of beads that Jody has (1,400) by the amout of beads she puts in each box (16):
1,400 ÷ 16 = X
87.5 = X
She can only put 16 beads in 87 small boxes, but she will be left with 8 beads that aren't in a box.
There you go! I really hope this helped, if there's anything just let me know! :)