0.0 since there is NO shaded area.
23.0
If cos y = 0.5135 then y = 59.1°.
52.0
6.3 is the nearest tenth...
78.5
0.79 rounded to the nearest tenth equals 0.8
If we can't see the shaded area or if you don't tell us what it is, we'd just be guessing.
1.4
pi*11.52 = 415.4756284 or 415.5 ft to the nearest tenth
16% is one tenth shaded in a graph
0.04
46.0
0.7778
65.5
4.5
38 US gallons equals 143.8 liters, rounded to the nearest tenth of a liter.
Wrong! Rounding 3.23 to the nearest tenth is NOT 3.25 but 3.2. Rounding 4.74 to the nearest tenth is 4.7