The length of a cell phone is 1.4 inches and the width is 3.4 inches. The company
making the cell phone wants to make a new version whose length will be 1.12 inches.
Assuming the side lengths in the new phone are proportional to the old phone, what
will be the width of the new phone?

2.72 inches

Step-by-step explanation:

1.4/1.12 = 1.25

3.4/1.25 = 2.72

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.  

first one because it can't have a fraction in it

step-by-step explanation: