Make a frequency distribution table with 5 classes. Class width
Data:
108 439 123 120 132 131 131 127
124 111 101 135 119 116 117 128
139 119 118 114 127 150 157 102
Frequency
Class
Cumulative
Lower
Upper
Midpoints
Relative
Limits
Frequency
Boundaries
Boundaries
Frequency
Σ - -L

2160ft3

step-by-step explanation:

just sum

10 + 10 = 20

final total: 63

step-by-step explanation:

60 times sales tax

60 times 0.05

3

60 + 3

63

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: