51,000
5 in the ten thousands,
The thousands value is 1, the hundreds is 4 (less than 5 so we round down)
Pi aka 3.14 is a very commonly know irrational number
Add 4 to the whole equation
-10 + 4 < 2x < 8 + 4
Simplify
-6 < 2x < 12
Divide the whole equation by 2
-6/2 < x < 12/2
Simplify
<u>-3 < x < 6</u>
41.5 times 8.4 is the equation your in high school so you should know the rest
Answer: 66.6 oercent
Step-by-step explanation: Hope this helps