57- (-13)= helpppi need it like now

True or false? many triangular shapes can be circumscribed about a given circle

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

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.