The book recommends that passwords be at least ________ characters long

Cost of sales is calculated by:

A) adding the cost of inventory on hand at the start of the period minus the cost of any purchases of materials during the year and then subtract the cost of ending inventory. B) adding the cost of the inventory at the start of the period plus the cost of any purchases of materials during the year and then subtract the cost of the ending inventory. C) adding the cost of the inventory on hand at the start of the period plus the cost of any purchases of materials during the year and then add the cost of the ending inventory. D) adding the cost of the inventory on hand at the end of the period plus the cost of any purchases of materials during the year and then subtract the costs of the beginning inventory.

Present-day television, both broadcast and cable, employ:

A. frequency division multiplexing B. separate channel multiplexing C. separate frequency multiplexing D. common channel multiplexing