Plz help plz ill give brainliest A scientist is growing bacteria.

The number of bacterial cells triples every week.
There are currently 20 cells.

Which expression shows how to find the number of cells in 4 weeks?
A. f (4) = 3 ∙ 204
B. f (4) = 4 ∙ 203
C. f (4) = 20 ∙ 34
D. f (4) = 20 ∙ 43

6e14 is the 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