The first 3 are correct but for the last one I’m not sure
Answer:
the statements are not equivalent
I think it is the tens because the first is ten thousand, second is thousand, third is hundreds and last is units ones
Answer:

Step-by-step explanation:

Answer:
19
Step-by-step explanation:
Add up all the numbers:
3,2,2,2,1,1,1,4,2,1
Then you get 19.
Or you can say it as
3^2 + 2^4 + 1^4 + 4