1 1 Kiely's firm faces the following production function: Q-4-L2 K2, where Q is the amount of products produced by the firm, L is the number of hours of labour employed, and K is the amount of capital utilized by the firm. How many products are produced if the firm uses 16 hours of labour and 16 units of capital? Number How many products are produced if the firm uses 81 hours of labour and 81 units of capital? Number The firm displays, Constant Decreasing None of the above All of the above Increasing returns to scale.