Based on the information determine which sides of quadrilateral abcd must be parallel

The angles must be opposite to be equal to each other so parallelogram ABCD

Line AB is parallel to DC and line AD is parallel to BC

C is the correct answer

$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