WILL GIVE BRAINLIEST! Solve. Use the discount equation
S = R − rR,
where S is the sale price, R is the regular price, and r is the discount rate.

An exercise bike is on sale for $490, having been marked down 30% off the regular price. Find the regular price.
$

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.  

step-by-step explanation:

its 512 because parenthesis and to the 2nd power is 512 so it will be 512