Why 300 valve on 150 system?

What is the probability of a set of 28 people having two sets of matched birthdays? What is the simplest form for 8 over 24? What is the rule to the number pattern1 2 2 3 3 3 4 4 4 4 5 5 5 5 5? What would the world be like if all variances equaled zero? What is 1.998 to 2 decimal places? What is the purpose of a symbol? Are Adjacent angle conguent? What is 65.88 rounded to the nearest ten? If line segment AD equals 12 meters what is the length of line segment AB? How far do you travel in one second at 60 miles per hour? How many seconds in 2.5 weeks? What is a 10 sided polygon called? If a sample of 66 employees were taken from a population of 820 employees s2 could refer to the variance of how many of the employees salarues? What building is on quarter? 5 is what percent of 45? What is your average speed if you can travel 100 kilimiters in 2 hours? How much is 3 percent interest on 10000? What is the average of 14 15 22 21? What is the answer to 7P plus 9 equals 16 plus 6P? What is 3x equals 2y plus 7 in standard form?