Rationalize the denominator : 1 / √3- √2

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

Which of the following represents the factorization of the trinomial below? x^2+7x-30

A6 ounce bottle of dressing costs $1.56 a 14 ounce bottle costs $3.36 a 20 ounce bottle costs $5.60 which has the lowest cost per ounce