400% of a is the 1% of 400a
The first one is 31.875 and the second is 12 I don't know how to explain to get it. Sorry
Answer:
q = 1
Step-by-step explanation:

Hope this helps.
·_21.21
25l546. 25 goes into 54 twice with a remainder of 4
l50↓
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l 46 25 goes into 46 once with 21 left
l 25
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21