What fraction is greater 1/2 or 6/11

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

Factor this polynomial completely x^2-64

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project