Help me I don't know what's this is about
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Answer:
first of all square mean two number or double so if we multiple 15×15=225 and if we multiply 16×16=256 mean the number 240 lies between them what about number 15.5 lets try now 15.5×15.5=240.25 if you want to make sure so just take a square root of this number
so 240 is product of (15.5)² note number after point is negligible
To make y the subject, we must move everything to one side and y on the other.
Good day and I hoped that helped!