Explanation not required. I would like to check my responses against those of an expert.

A 5K race is held in Denver each year. The race times for last year's race were normally distributed, with a mean of 20.71 minutes and a standard deviation of 2.91 minutes. Report your answers accurate to 2 decimals a. What percent of runners took 17.8 minutes or less to complete the race? I: % b. What time in minutes is the cutoff for the fastest 4.3 96? [: Minutes c. What percent of runners took more than 17.5 minutes to complete the race? [:36