Question 324292
Let 'x' be some dollar amount (eg how much an item costs at a store)


So if an item costs "at least" 10 dollars, then that item is either $10 or more. So this means that {{{x>=10}}}


On the other hand, if the item costs "at most" 30 dollars, then this is the max that the item can cost. So {{{x<=30}}}



Note: If we say that the item costs "at least" 10 dollars AND it costs "at most" 30 dollars, this means that the item is between $10 and $30 and can be symbolized as {{{10<=x<=30}}}