Answers
3a) Curran used the following property of inequality
Distributive property
Subtraction property
Division property
3b) Ajani used the following property of inequality
Division property
Addition property
4) the Distributive processes are the same except that with inequalities, every time you multiply or divide both sides by a negative number, the inequality flips from > to < and vice versa.
Notice both Curran and Ajani did this in solving the inequalities.