Self assessment for self employed HELP PLEASE

Petana

I am helping to complete self assessment for my husband. I am in level 2 and don't have to knowledge yet :001_unsure:

Can anyone please help me answer these?

I found out that buying a van ( spent £ 4300) and tools ( £ 400) comes within the capital allowance. I am not sure how much of this he can claim for these? Since he is not on his first year of trading, I believe it's 20% of the car + 10 % of the tools. Is that right?

Can he also claim in fuel fuel receipts and congestion charge since he uses the car for his business purely? If so, would this be included in the expenses?

Any help is much appreciated. Thanks