Mr. lumber got asked his third grade class to name the rule for the following number patterns.

573, 579, 585, 591,

what is the rule:
add 3
add 6
add 7
add 9

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.7 days. what is the probability of spending more than 2 days in recovery? (round your answer to four decimal places.)