³√250 = ³√2 ³√125 = 5 ³√2
<span>we need to show that ³√2 is irrational</span>
Domain restrictions are what x values make the denominator zero.
a² + 5a - 36 = (a + 9)(a - 4)
a ≠ -9 ; a ≠ 4
If your question is 25 dollars for the shirt then the ansewer is $26.5 hope this helps.