Can someone please help me its would mean a lot and I donr know if I'm right

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  (d)  Eighteen divided by a number m is seven point two.

Step-by-step explanation:

The symbol ÷ is read "divided by", so the math sentence ...

  18 ÷ m = 7.2

is read "eighteen divided by [a number] m is seven and two tenths."

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"Seven and two tenths" can also be read as "seven point two."

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.  

answer: 7

step-by-step explanation: