100x = 21.212121.....
100x - x = 21.212121... – 0.212121...
99x = 21. ( divide both side by 90)
x = 21/99
x = 21:3/99:3
x = 7/33
<h3>
<u>PLEASE</u><u> MARK</u><u> ME</u><u> BRAINLIEST</u><u>.</u></h3>
Answer:
43 46 34 98 78 67
Step-by-step explanation:
Answer:
Step-by-step explanation:

So first you do the parenthasees so 2+3=5
[5]4=20
I'm nnot sure what the _ is but I'm guessing that is is minus
and the : might mean divide so
20-15=5
{5}45/45=5
Answer:
5.1
Step-by-step explanation:
I don't know how to explain, but 1 decimal place is the number after the dot