3 x 10^4 = 30000
2.5 x 10^2 = 250
30000 * 250 = 7 500 000 t-shirts
Another way showing the answer
3 x 10^4 * 2.5 x 10^2 = 7.5 x 10^6
As you multiple 3 by 2.5 and add 4 and 2 for the degree
Answer:
2500 people PER square mile
Step-by-step explanation:
THe population density is the population per unit area.
Here,
Given:
Population = 400,000
Total Area = 160 sq. miles
To get population density, we would need the population PER UNIT AREA, per miles.
We can get that by dividing the total population by total area:
400,000/160 = <u>2500 people PER square mile</u>
This is the population density.
The answer is of course E -340
235-(-12)=247; his elevation changed by 247 m.