a monthly fee to download e books is 4.95, plus 3.99 per book downloaded. Write an equation that represents the total cost, c, in a month when b books are downloaded. Explain how your equation represents the problem.

c=4.95+3.99b

When there are no books, the service fee still applies, so when b=0, c=$4.95.

For each book downloaded $3.99 is added to the charge. The service fee is only charged once a month.

Step-by-step explanation:

Answer

4.95+3.99b=c

Step-by-step explanation:

When there are no books, the service fee still applies, so when b=0, c=$4.95.

For each book downloaded $3.99 is added to the charge. The service fee is only charged once a month.

expression #3 is not equivalent. the others are.