What become(s) important for large systems that produce several thousand data elements requiring cataloging and cross-referencing?

In extending an expense item for the current budget year, an often-used and useful approach is to

A) use last year's figure. B) use the average of the last three years. C) use last year's figure plus a usual 10% "fudge factor." D) adjust last year's figure upwards by this year's expected inflation.

A linear programming problem contains a restriction that reads "the quantity of S must be no less than one-fourth as large as T and U combined." Formulate this as a linear programming constraint

A) S / (T + U) ? 4 B) S - .25T - .25U ? 0 C) 4S ? T + U D) S ? 4T / 4U E) S ? .25T + S ? .25U