Answer:
366
starts at 9, jumps by 7 each time.
so it's 9 plus 7 times the number if remaining jumps.
51x7= 357
add the origiinal 9, and you get 366
400 lbs = 0.2 tons
38,600 mg = 3.86 dekagrams
Hope it helps!
To evaluate the expression all you have to do is substitute the value for the variable.
3 + y + 6, y = 5
3 + 5 + 6
8 + 6
14.
The solution is 14.