Answer:
The new coordinate of B' will be ( -1, 6)
If there are 45 beads, with a ratio of

Then,

Then if

Then

Therefore,

Meaning, there would be a ratio of 36 beads to 9 beads
Answer:
17
Step-by-step explanation:
Work backwards from your instructions
36/9 = 4
4 + 13 = 17