Jeff's salary is 25% higher than josh's. by how many percents is josh's salary less than jeff's?

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Great Question!

It is 20%. Assume Josh is 100000 and Jeff is 125000

The formula is  (Jeff-  Josh)/Jeff * 100 = (25000)/100000 *100 = 20%

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the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.