If you buy 3 books for $5.00. How many books can you buy for $90

*pretty easy points just trying to check my answer*

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.

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?