In this problem, a, b, c and d are nonzero integers. If a/b is added to x, the sum is c/d. Which statement can be used to find x must be a rational number? A) x= cb - ad/ bd
B) x= c-a/ d-b
C) x= c+a/ d-b
D) x= cb + ad/ bd

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?