In mathopolis, an adult is a person 21 years of age or older and a child is a person under 21 years of age. exactly half of the adults in mathopolis are female, and exactly half of the female adults have exactly one biological child. nobody else has a child, and there are no other children. what percent of the people of mathopolis are children?

  20%

Step-by-step explanation:

If there are 4 adults, 2 are female, and 1 of those has 1 child. Then the population is 4 adults and 1 child. The children make up 1/5 = 20% of the population.

a

step-by-step explanation:

$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