A city has a population density of approximately 6,300 people /km2. The population is about 552,200 people. What is the approximate area of the city

Step-by-step explanation:

552,200 people × (1 km²)/6,300 people) ≈ 87.65 km²

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720