The ratio of bikes to scooters is 4to 7, if there 24 bikes then how many scooters are there

Add 1/7 + -1/7 your answer should be reduced to its smallest form and should not be an improper fraction

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.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16