Find the vertex form of the quadratic function by completing the square F(x)=x^2-18x

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Mikes car gets an average of 28 mpg. there are 12 gallons of fuel in mikes car when he starts his trip of 140 miles. about how many gallons are left at the end of his trip?