The price of an item has been reduced by 20%. the original price was $45. what is the price of the item now?

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?

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute

The population of a bacteria colony grows by a consistent percentage each hour and can be modeled by the function y = 500(1.16)t. what does the value 500 represent in the function?