Dontrelle checked out 4 library books, which have now been overdue for 12 days. his total fine so far is $9.60 . which of these equations can be used to determine the amount the library charges as a fine per day per overdue book? a. 4f=$9.60/4 b. 4f=$9.60 c. 12f=$9.60/4 d. 12f=$9.60

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

Which expression is not a polynomial?

If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?