Greg rounded an answer on his calculator to 20. The exact number on his calculator was 19.72. What is the percent error of Greg’s rounded answer? Give your answer to the nearest 10th of a percent.

Which of the following expressions is equal to 2x^2+8

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

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.