8,160 ÷ 85 = <span>96
2,880 </span>÷ 30 = 96
SO, Camilla can make 96 necklaces.
Hope I helped:P
Answer: 
Step-by-step explanation:
To find the inverse of a function start by replacing f(x) with x and replace the original x with y.

Now solve for y

Finally, replace y with the inverse of f(x), 
Answer: - 60i - 14j
Step-by-step explanation:
- 18i + 16j - 42i - 30j = - 60i - 14j