Question: The total mechanical and electrical unit costs for a library are listed as $40 per square foot, while total project cost is estimated at $119

The total mechanical and electrical unit costs for a library are listed as $40 per square foot, while total project cost is estimated at $119 per square foot. Based on these values, the percentage of total costs represented by mechanical and electrical costs is closest to:

(a) 21%

(b) 29%

(c) 34%

(d) 38%

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