Which property of equality would be used to isolate the variable a in this equation? . a – 4 = 12. a. addition property of equality. b. subtraction property of equality. c. multiplication property of equality. d. division property of equality

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.