Which of the following is an example of the identity property of 1 ? $$ \begin{array}{l}(0) 7.45=0 \ 9 \frac{2}{3}(1)=9 \frac{2}{3} \ -1+2=1 \ 4 \frac{5}{6}+0=4 \frac{5}{6}\end{array} $$

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1. The identity property of 1 for multiplication is given by $$ a \times 1 = a $$ for any number $$ a $$.
2. Looking at the options:
   - $$ 7.45 = 0 $$ is not a multiplication or identity property.
   - $$ 9 \frac{2}{3}(1)=9 \frac{2}{3} $$ shows multiplying by 1 and returning the same number.
   - $$ -1+2=1 $$ involves addition, not multiplication.
   - $$ 4 \frac{5}{6}+0=4 \frac{5}{6} $$ illustrates the identity property of 0 for addition.
3. Therefore, the correct example is:
   $$
   9 \frac{2}{3}(1)=9 \frac{2}{3}
   $$
$$ 9 \frac{2}{3} \times 1 = 9 \frac{2}{3} $$ is an example of the identity property of 1.

Which of the following is an example of the identity property of 1 ? \( \begin{array}{l}(0) 7.45=0 \\ 9 \frac{2}{3}(1)=9 \frac{2}{3} \\ -1+2=1 \\ 4 \frac{5}{6}+0=4 \frac{5}{6}\end{array} \)

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