Triangle def is reflected over a line then its image is reflected over a second line parallel to the first line. if the two parallel lines are 30 units apart and dd'' is 5x+5, what is the value of x? i know the answer is 11 but explain how you get that .

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

I’m really confused and need to learn this

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?