Need help i am really confused

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost