Amassage costs $81.50 per hour. how much will a massage for 2.5 hours cost

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Sketch one cycle if the cosine function y=2cos2theta