1.1 see text
1.2 225 ft
1.3 122 2/9 ft
1.4 88/15 ft/s2
1.5 80 ft/s
1.6 4.82 m/s

2.1 p(t) = 60*e^(3*ln2*t), 60*e^(24*ln2), ln(1000/3)/(3*ln2)
2.2 ~20,159
2.3 120
2.4 65
2.5 12.5
2.6 ~3.8
2.7 ~2500 years

3 is about graphing solutions

4.1 1064
4.2 ~1.55 years
4.3 3:36 PM