Solve please, ill mark brainliest. Its easy

One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?

Ineed the solution to this problem and the steps.

If the owner of que legal services forgot to deduct a withdrawal from the balance per books, what entry would be necessary?