Answer:
40
Step-by-step explanation:
(120 - 40)/2 = 80/2 = 40
There are 10,000 possible values the digits 0 and 9 can be arranged as a 4-digit number.
Step-by-step explanation:
0 is right in the middle of all negative and all positive numbers.
0 is therefore larger than any negative number and smaller than any positive number.
and 0×n = 0, always, no matter what n is.
-0 = +0 = 0.
so, of course, only
4.1m > -16.4
is correct.
0 is not greater than 16.4.
0 is not smaller than -16.4.
Answer:

Step-by-step explanation:
Collect like terms

Collect like terms again and you get 
Hope this helps ʕ•ᴥ•ʔ