Jake, sara, and cole are selling tickets for the school drama show. sara sells half as many tickets as jake. cole sells 6 more than twice as much as jake. they sold a total of 538 tickets together.
a) write an equation to represent the situation.
b) solve to find how many tickets sara sold.

Let x be the number of tickets Jake sold,

Since, Sara sells half as many tickets as Jake.

⇒ The ticket sold by Sara =

Also, Cole sells 6 more than twice as much as Jake.

⇒ The ticket sold by Cole = 2x + 6,

Thus, the ticket sold by all three =

a) According to the question,

b) By solving this equation,

Thus, the number of tickets Sara has =

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.  

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step-by-step explanation: