Abatch of cookies requires 3/8 cup of butter. butter can be purchased in boxes, each containing 4 sticks, with 1 stick equivalent to 1/2 cup of butter. if monica is to bake 15 batches of cookies, which of the following is the best estimate for the total number of boxes of butter she needs to buy?

Firstly, we need to find how many cups of butter is needed to bake batches. We will need  cups of butter. This is  cups. Since we can only buy butter in boxes with 2 cups of butter in it, we will have to buy 3. This will give us 6 cups of butter, which will be enough. If we only buy 2, then we will only have 4 cups of butter, which won't be enough to bake 15 batches of cookies.
So, the answer is 

144 p

Step-by-step explanation:

It was due to be returned on 26 November but she returned it on 12 December.

She was therefore with it for an extra 16 days.

The fine is 9p per day. Therefore, she will pay a fine of:

9 * 16 = 144 p