Find the length of arc EF with an angle measure of 100 degrees and radius of 5 in. Round to the nearest hundredth place if you get a continuous decimal when dividing with 360 degrees.

the real question is why is this guys last name heavyfoot

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

source:  

93-8=85

855=17

17*4=68

there are 68 purple marbles in that bag