Yes
No if in the middle of a sentence but yes if at the start of a sentence.
No it won't, unless it is at the start of a sentence.
A capital letter
A capital letter.
The words that should start with a capital letter are places, names, important words in a title, and the letter at the start of a sentence.
Only if its at the start of a sentence:)
The first word of a sentence must start with a capital letter. There are millions of ways to start a sentence!
Yes it should.
If it's at the start of a sentence - yes, otherwise - no.
A properly written sentence starts with a capital letter.
No, there is no need for a capital letter after an equal sign in most cases. The convention is to start a new sentence with a capital letter and not necessarily after an equal sign within a sentence.
Madrid is the capital of Spain. The company needed to raise more capital in order to expand. A sentence should start with a capital letter.