suppose a perfectly competitive firm with total cost function given as :TC=400+20Q-2Q²+⅔Q³ A, find profit maximizing level of output and the maximum profit if the average revenue equals $180 B, calculate the shutdown level of output and price​

Micah is studying child behavior in playgrounds throughout the world. he wants to see how the children react when teachers select the same child to be the first to use each piece of equipment. which approach is micah is using?

Today natural rights are referred to as human rights. discuss how respect for human rights can further be improved.

Read the paragraph and answer the question that follows: the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert which sentence should be revised to eliminate redundancy? the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert system is needed immediately.