Answer:
Step-by-step explanation:
41/21km or 1 20/21km
1) simplify fractions: 4 2/7 = 30/7 and 2 3/9 = 7/3
2) find common denominator: 90/21 - 49/21
3) subtract: 41/21
4) simplify: 41/21 or 1 20/21
1,718.28
1,548, percentage increased by 11% (percent) of its value = 1,718.28
AC=AB+BC-cos. AC=100+66-cos. AC=166-0.906. AC=√165.094. AC=12.8
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