A scale drawing of a square has a side length of 7 millimeters. The drawing has a scale of 1 mm : 9 km. Find the actual perimeter and area of the square.

Perimeter
is equal to

$=$
=

km
Area
is equal to

$=$
=

km
2

$^2$
2

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.  

agree

step-by-step explanation:

93-8=85

855=17

17*4=68

there are 68 purple marbles in that bag