Simplify the expression where possible. (3b^3)^4

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Formulate the indicated conclusion in nontechnical terms. be sure to address the original claim. the foundation chair for a hospital claims that the mean number of filled overnight beds is over 523, and she is therefore justified starting a funding campaign to add a wing to the hospital. assuming that a hypothesis test has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.