SOMEONE PLEASE HELP ME determine the common difference for each arithmetic sequence 10.5, 13, 15.5, 18,..

What are “like terms”? why can we only add like terms?

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.

Percent increase and decrease. original number: 45 new number: 18