The area of a square is 81. find the perimeter of the square.

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

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 shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1