The function that converts pounds of Country A to dollars of Country B is f(x)=1.9738x, where x is the number of pounds of Country A and f(x) is the number of dollars of Country B. Complete parts a and b below. a. Find the inverse function for f. f1(x)= | (Simplify your answer. Use integers or decimals for any numbers in the expression. Round to six decimal places as needed.)