Answer:
10 
Step-by-step explanation:
Hi there, hope you are having a nice day!
All we should do is plug in the value of b:
12-2
10 (Answer)
Hope you find it helpful.
Feel free to ask if you have any questions.

Answer:
Yes
Step-by-step explanation:
The numbers both multiplied by 10
3 -6
30-60
13.42 is how long the wire is to the nearest hundredth of a foot
4 + 2h < -3
2h < -7
h < -3.5
x ∈ (-∞, -3.5)
R=2.1
Diameter would be half of that