Help Me get out of this web.

Can you check my homework before I turn it in.
1. Which sentence is punctuated correctly?

a) The cost, and size of the computers are decreasing, almost as rapidly as processing power is increasing.

b) Database management systems were originally large, unwieldy, and difficult to use.

c) A factory closing means the community loses jobs tax revenues and retails sales.

d) An operating system is the set of instructions, that directs the overall operations of the computer.

(My answer is B)



2. What needs to be done to the following sentence?

Have you read the article entitle, "Increase Your Vocabulay?"

a) The sentence is correctly punctuated.

b) Remove the comma after entitled and place the question mark outside the end quotation marks.

c) Remove the comma after entitled.

d) Underline the title of the article.

(My answer is B because titles are to be underlined)



3. What needs to be done to the following sentence?

The case against the Dallas based company was handled in Seattle.

a) The sentence is correctly punctuated.

b) Add a hyphen after Dallas and after based.

c) Add a hyphen after Dallas and a comma after company.

d) Add a hyphen after Dallas.

(My answer is C because Dallas bases needs a hyphen and a comma behind company.)


Thanks for all of your help.