To determine the consumer price index (CPI), . a. only the current market basket at current prices needs to be known. b. the values of the base-year market basket at current and base-year prices need to be known. c. the values of the current market basket at current and base-year prices need to be known. d. only the current market basket at base-year prices needs to be known. e. the values of the current market basket at current prices and the base-year market basket at base-year prices need to be known.

Suppose that a paving company produces paved parking spaces (q) using a fixed quantity of land (t) and variable quantities of cement (c) and labor (l). the firm is currently paving 1,000 parking spaces. the firm's cost of cement is $3 comma 600.003,600.00 per acre covered (c) and its cost of labor is $35.0035.00/hour (w). for the quantities of c and l that the firm has chosen, mp subscript upper c baseline equals 60mpc=60 and mp subscript upper l baseline equals 7mpl=7. is this firm minimizing its cost of producing parking spaces?