Question

Use deductive reasoning to tell whether each statement is true or false, give a counter example . If true, use properties or real numbers to show the expressions are equivalent.

22 For all real numbers r,s, and t, (r • s) • t = t •(s • r).
23 for all real numbers p and q, ÷ q = q ÷p
24 For all real numbers x, x + 0 = 0
25 for all real numbers a and b, -a • b = a • (-b)