The rate of heat loss from a metal object is proportional to the ratio of its surface area to its volume. What is the ratio of a steel sphere’s surface area to volume? Compare the rate of heat loss for two steel spheres of radius 2 meters and 3 meters, respectively.

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$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