Which equation below represents exponential decay? y=-3(5)^x y=3x-5 y=2(1/4)^x y=3(5)^x

C. y=2(1/4)^x

B is just a linear functions and the other two aren't exponential functions

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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