Sandy has $200 in her bank account if she writes 6checks for exactly $19.98,what expression describes the change in her bank account

Is the square root of 4 plus the square root of 16 rational?

What is the graph of the absolute value equation ? y=|x|-5

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.)