Joana decidiu fazer um mapa e calcular a distancia que percorre em seu

4th option is correct xy=-10

if this was to u plzz mark me the brainliest

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 "add 2y and y"

step-by-step explanation:

you need to collect the like terms first.