Show by the algebra that sn-sn-1 =pn. pn=1/2n(n+1)​

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40

step-by-step explanation:

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113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734