How do you do this? Latitude 19.50°N is the minimum latitude shown on the map. Carefully measure the distance along the orange line from the 19.50°N parallel to the MLO site. We will call that map distance a1. a1 = ___ cm

i am unable to solve this problem

step-by-step explanation:

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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