17.5x12=210
210 divided by 14=15
15x2.50=37.5
37.5
17.5 is feet so you need to divide by 12 for inches which gets 210 and you need each necklace to be 14 inches so you need to divide 210 by 14 which is 15 each necklace costs 2.50 so you multiply 2.50x15
You get 37.5
Answer:
The relation is 
Step-by-step explanation:
Here we have

Integrating we get
-ln(900000 - y(t)) = kt + C
With initial condition y(0) = 0 we get
C = -ln(900000)
Therefore,

Here is a photo of how to solve it
Answer:
I'm pretty sure its the 3rd answer