Question 1. Do you think that will bounce back in 90 days?

If utilization is now low, it will bounce back the next time the balance is reported, usually monthly.

Additionally. I'm going to be applying for 2 new types of credit cards. A store card (Amazon Prime card) and a Gas card (not sure which one yet).

Hard inquiries will reduce your credit score.

The new card account types and increase in credit limit should bump up my score.

In a year maybe, but their immediate effect will likely lower it.

Question 3. Do you guys have any advice on suggested credit cards for gas cards and store cards?

What stores? That Chase Amazon Visa has 2% at gs stations, restaurants, and drugstores.

Bank of America Cash Rewards has 3% on gas and 2% at grocery stores.