How do you do this question? Im working from home and this is the teachers worked example.. with no workings on it Step by step, i need to know what to do for each question ( 1 - 3 )

The length of time it takes to find a parking space at 9 a. m. follows a normal distribution with a mean of 5 minutes and a standard deviation of 2 minutes. find the probability that it takes at least 8 minutes to find a parking space. (round your answer to four decimal places.)