Answer:
Which sentence expresses numbers correctly?
a. Over 7,600,000,000 spam messages are sent each day, and nearly 1,000,000
computer viruses are detected yearly.
b. Over 6 billion spam messages are sent each day, and nearly one million computer
viruses are detected yearly.
c. Over 6 billion spam messages are sent each day, and nearly 1 million viruses are
detected yearly.
Answer:
Which sentence is correctly punctuated?
a. Report your trip expenses, and you will be promptly reimbursed.
b. Report your trip expenses and, you will be promptly reimbursed.