Answer:
z = 6
Step-by-step explanation:

6 ft 6 in....
1 ft = 12 inches, so 6 ft = (12 * 6) = 72 inches...+ the other 6 inches = 78 inches
78 / 5 = 15.6 inches
The answer is one kilogram. one kilogram is about the same as 2 pounds, while one gram is less than an ounce.
Hope this helps!