What is the vertex of the parabola of the equation? y=-x^2+12x-4step by step,

One integer is 8 times another. if the product is 72, then find the integers

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

Robert is placing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other area is 5.7 feet. the sod costs y dollars per square foot