9. Is 0.3 the multiplicative inverse of $$3\frac { 1 }{ 3 }$$? Why or why not?
Yes, 0.3 is multiplicative inverse of $$3\frac { 1 }{ 3 }$$.
Because $$0.3\times 3\frac { 1 }{ 3 } =\frac { 3 }{ 10 } \times \frac { 10 }{ 3 } =1$$.