The boy exits the stairwell at the 4th floor, which is 42 ft above the ground. How many seconds will it take him to get to the 4th floor from a height of 136 ft?

2.41 s

Step-by-step explanation:

Given

Stairwell is at a height of

and Height from where he starts

Total height boy needs to cover is

using

where

$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