3x - 6 = 2x + 6
3x = 2x + 6 + 6
3x = 2x + 12
3x - 2x = 12
x = 12
If no base is mentioned, asssume base 10
remember

translates to

so
since no base mentioned, assume base 10

translates to

then
1000=2x
divide both sides by 2,
500=x
Mode (most occurring) - 4
mean (average) - 8
median (middle number from least to greatest) - 4
Answer:
513 people per square mile
Step-by-step explanation:
because