In a classroom the number of girls is 3 and 2/3 times the number of boys. there are 16 more girls than boys. find the total number of students in the classroom. explain your answer.

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Is the square root of 4 plus the square root of 16 rational?

Express -5 2/5 as an improper fraction.