5 Seth bought a used car that had been driven 20,000 miles. After he owned the car for 2 years, the total
mileage of the car was 49,400. Find the average
number of miles he drove each month during those
2 years.

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.

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?