Commas with Compound & Complex Sentences

Where should the semicolon go in the compound sentence below?
I love playing volleyball I improve every week.

• before I
• after I
• before every
• after every

Which sentence uses commas correctly?

• Jim is very bold and smart but he doesn't always say nice things to people. 
• Jim is very bold and smart, but he doesn't always say nice things to people. 
• Jim, is very bold and smart but he doesn't always say nice things to people. 
• Jim is very bold, and smart, but he doesn't always say nice things to people. 

Which sentence is the correct compound sentence?

• Mary swam in the pool, but she didn't have any of her friends with her to swim with.
• Jennifer ate her lunch and, went to the ice cream store.
• Brooke had her party but, none of her friends could sleepover.
• Sarah and Julie had a picnic and then rode bikes

What is the best way to combine these sentences.

1) Even though they are uncomfortable.

2) Safety goggles should be worn at all times. 

• Even though they are uncomfortable, but safety goggles should be worn at all times.

• Even though they are uncomfortable, safety goggles should be worn at all times.

• Even though they are uncomfortable, and safety goggles should be worn at all times.

• The sentences are written correctly as is!

Choose the part of the sentence that is: an independent clause.

Because he ran, he was able to catch the bus.

• Because he ran

• he was able to catch his bus

Punctuate:
If I don't read carefully I often make mistakes on my work.

• no comma needed
• carefully, I
• mistakes, on
• make, mistakes

Rewrite the sentence, changing the order of the independent and dependent clauses:
If you are tired, you should have a rest. 

• You should have a rest if you are tired.
• If you are tired you should have a rest. 
• You should have a rest, if you are tired.

Rewrite the sentence, changing the order of the independent and dependent clauses:
She carried on although she was exhausted.

• She carried on although, she was exhausted.
• Although she was exhausted she carried on.
• Although she was exhausted, she carried on.

Rewrite the sentence, changing the order of the independent and dependent clauses:
After waking up late, Sam missed the bus.

• Sam missed the bus, after waking up late.
• Sam missed the bus after waking up late.
• After waking up late Sam missed the bus.

Rewrite the sentence, changing the order of the independent and dependent clauses:
I will set the table while you cook dinner.

• While you cook dinner, I will set the table.
• While you cook dinner I will set the table.
• I will set the table, while you cook dinner.