Posted by **Amber** on Thursday, December 16, 2010 at 3:25pm.

Im having trouble solving the amount per day...

The table below shows the relationship between d, the number of days a DVD is returned late to a video rental store, and f, the amount of the late fee. Write an algebraic expression that describes this relationship? Prove your answer works!

d 1 2 3 4 5

f $3.75 $5.50 $7.25 $9.00 $10.75

- Math-7th grade -
**Ms. Sue**, Thursday, December 16, 2010 at 3:28pm
Subtract each pair of numbers. What do you get?

Example:

10.75 - 9. =

9. - 7.25 =

- Math-7th grade -
**Amber**, Thursday, December 16, 2010 at 3:30pm
1.75

Thank you,

But what about for day one? If it's 1.75 per day, how is the first day charge 3.75?

- Math-7th grade -
**Ms. Sue**, Thursday, December 16, 2010 at 4:03pm
It could be a $2.00 fine for being late -- and then $1.75 a day on top of that.

- Math-7th grade -
**Amber**, Thursday, December 16, 2010 at 4:06pm
that makes sense...thanks!

- Math-7th grade -
**Ms. Sue**, Thursday, December 16, 2010 at 4:16pm
You're welcome. :-)

- Math-7th grade -
**Anonymous**, Tuesday, January 4, 2011 at 6:49pm
unit rate of $3.99

- Math-7th grade -
**juleya secsena**, Sunday, May 1, 2011 at 1:51pm
hy what great are you?

are you creezy?

2+2=4 then if you are great 7 you should know that?

sham on you!!!

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