I have no clue how to do this
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Answer:
Number one is 500.
Number two is 205.
Step-by-step explanation:
I can only answer number 1 and number 2
Number 1
add 25 to each columns after the first column until 20th column and you will get 500.
Number 2
add 10 to each columns after the first column until 20th column and you will get 205.