Help me with this math problem please

The relative frequency of event "spin a 3" is calculated by:

F = number of elements/total number of elements

  = 24/50 = 0.48

Hope this helps!

:)

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.  

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.