Given the function f(x)=0.3(4)^x what is the value of f^-1(6)
a. 0.360
b. 1.242
c. 2.161
d. 2.312

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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