Answer:
Therefore the friends will have to buy 511 feet of fence (rounding up) or 510 feet of fence ( to the nearest foot).
Step-by-step explanation:
i) perimeter of rectangular yard = 319 feet
ii) perimeter of yard of friends 
iii) Therefore the friends will have to buy 511 feet of fence or 510 feet of fence ( to the nearest foot).
Answer:
the sum of 27,28,29,30 is 114
Step-by-step explanation:
Answer:27.272614
Step-by-step explanation: I did the working on paper for you
3 to the power of 5
you multiply 3 times 5 instead of 3 times 3 times 3 times 3 times 3
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