Someone please help me with B

Multiply tokens (t) by the price: 1.25t

Subtract this from the total amount he has (25) the total needs to be less than or equal to $5 so he can buy lunch:

25 - 1.25(t) <= 5

Now solve for t:

Subtract 25 from both sides:

-1.25(t) <= -20

Divide both sides by -1.25

T <= 16

He can buy a maximum of 16 tokens.

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.  

8

step-by-step explanation: