The ratio of girls to boys in a classroom is 5 to 4.how many girls are in the class if there is a total of 27 students

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest