Answer:
176000
Step-by-step explanation:
You already know the answer
So first divide 420 by 3 which gets you 140 so now you need to divide that 140 by 20 which is 7 so the jeweler could make 7 necklaces which is B. If you have any questions just ask. Hope I helped you ❤️
It is not continuous at x=3
It would be 29 or if you multiply it would be different
40 cm. Just divide the area by the length. Hope this helps!