x² - 15
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15 squared is either a two dimensional area or simply a number. Neither of these can have a volume.
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Yes. Any number that is the result of a whole number multiplied by itself is a square number. Since 15 squared (152) = 225, the square root of 225 is 15.
Six times a number minus five is less than twice the number plus ten. 6 * n - 5 < 2 * n + 10 6n - 5 < 2n + 10 4n - 5 < 10 4n < 15 n < 15/4 This statement will hold true for all n < 15/4
your expression is this... 7x < 49 x < 7 so any number below 7 can be your answer