Please help i need it The weights (in pounds) of 18 preschool children are 48,49,22,20,30,46,36,31,24,21,41,28 ,32,29,47,39,50. Find 10th and 75th percentiles for these weights.

22 points algebra 1//sum and product of rational and irrational numbers. dont have to do all 4 if could much : )) write an example: 1) how the product of two identical irrational numbers can be a rational number. 2) how the product of two different irrational numbers can be a rational number. 3) write a quotient of intergers that is not a real number. 4) is the set of positive irrational numbers closed for the operation of division? if not give a counter example.