Find the discounted price, to the nearest cent, for a portable CD player that sells for $59.95 and is on sale for 30% off.

$ 41.97

Step-by-step explanation:

59.95x30%=17.98

59.95-17.98=41.97

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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