Please help fast, this is due in an hour so please hurry.

answer: y=0 if that is what u r looking for

using pemdas, (order of operations) you'll see the answer is 24.

320ft

step-by-step explanation:

120 divided by 3 equals 40

40 times 4=160

160 times 2=320

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

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