Asap i only have till 4: 30 to finish three tests!
a film set designer is using white and colored tiles in a pattern to create paths of different lengths. if x is the length of the path in feet, the number of colored tiles needed to make it is calculated using the rule

(4x2y3)(3x2y2)

where y represents the number of white tiles.

which simplified expression represents the number of colored tiles used for a path of length x feet?

7x4y5
7x4y6
12x4y5
12x4y6