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Convert 2000 swiss francs to dutch guilders

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no