Evan has a shell collection. on monday he found 6 new shells. on tuesday , he gave 9 shells to his friends. after giving the shells away, evan had 37 shells left. how many shells did evan have to begin with?

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.