Final answer:
Roger must check the specific expiration or validity guidelines of his temporary license, which could vary. If it is a 30-day license, he may need to renew immediately, but if it's a 90-day license, he could have 60 more days to serve legally.
Step-by-step explanation:
The length of validity for a temporary license can vary based on the issuing agency and the type of license. Generally, temporary licenses are issued for short-term use while waiting for a permanent license to be processed. In many jurisdictions, temporary licenses are valid for 30 to 90 days. Since Roger was issued a temporary license thirty days ago, he would need to check the specific expiration or validity guidelines provided at the time of issuance to determine exactly how much longer he can legally serve under this license. If it were a 30-day temporary license, he may need to renew it immediately. However, if the temporary license has a 90-day validity, he could legally serve under it for 60 more days. He should refer to the documentation he received with his temporary license or contact the issuing authority for a definitive answer.