The half-life of a radioactive substance is 275 days. how many days will it take for 70% of the substance to decay?

triangle abc is reflected on the line x=-6.5 then reflected again on the x axis

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