In the video at the beginning of the lesson, how many 2-topping pizza combinations were there if there were 7 toppings to choose from?

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.

What is the shape of the height and weight distribution

What expression is equivalent to 42x-56y