Answer:
1. 33km
2. 1.2ft
3. 16in
4. 20.1ft
5. 7.2yd
6. 38mi
Explanation:
1. 10+11+12=33km
2. 1/2(1.8+0.6)1=1.2ft
3. 5+5+3+3=16in
4. 4.1+2.7+5.4+7.9=20.1ft
5. 1.8+1.8+1.8+1.8=7.2yd
6. 12+7+12+7=38mi
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