`13.00bar5 xx 20 xx 8.4bar23`

Explanation

To solve the problem \( 13.00\overline{5} \times 20 \times 8.4\overline{23} \), we will first convert the repeating decimals into fractions, then perform the multiplication.

### Step 1: Convert \( 13.00\overline{5} \) into a fraction

Let \( x = 13.00\overline{5} \).

To eliminate the repeating decimal, we multiply by 1000 (since the repeating part has 1 digit):

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