Tom is participating in a triathlon. In the triathlon, Tom can choose to swim, bike, and run various distances. These distances are shown in the table below. Part A:
Tom must choose 1 distance to swim, 1 distance to bike, and 1 distance to run. Create a sample space that shows all of Tom's possible choices.

Part B:
What is the probability that Tom's triathlon is at least 45 miles long?

$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

60: 45 =12: 9 =4: 3 so the answer is 4: 3

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

source: