The following data pertain to activity and costs for two recent months: \begin{tabular}{|l|r|r|} \hline & October & \multicolumn{1}{|c|}{ November } \\ \hline Activity level in units & 5,000 & 10,000 \\ \hline Variable costs & $10,000 & ? \\ \hline Fixed costs & 30,000 & ? \\ \hline Mixed costs & 20,000 & ? \\ \hline Total costs & $60,000 & $75,000 \\ \hline \end{tabular} If these activity levels are within the relevant range, the mixed costs for November were? At an activity level of 10,000 units, variable costs totaled $35,000 and fixed costs totaled $20,800. If 16,000 units are produced and this activity is within the relevant range, then: Multiple Choice