Answer for 10 points/other drop downs are x value and y values

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

Which of the following represents the length of a diagonal of this trapezoid?

Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?