Beverly walked 2 miles in 30 minutes. David walked 3520 yards in 20 minutes. In miles per hour, how much faster did David walk than Beverly? (1 mile = 1760yds)​

i got 142 as my answer

step-by-step explanation:

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.  

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.