Expressions. ent
Which expressions are equivalent to 6 +(-x) + 2x +(-7)
+ 2x? Check all that apply.
x + x + 6–7 + x
2x+ 2+x
3- X + 2x - 4 + 2x
ox-1
x+1

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.  

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

answer: i believe it is c

step-by-step explanation:

because 5+4=9 so it would be 3^9