Eddie sold three items at a garage sale for $4.00, $0.50, and $0.50. How can you use the associative property of addition to make the problem $4.00+$0.50+$0.50 easier to solve?

the equivalent expression are always the hardest ones but you look at the gcf also

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.  

i think its a and d

step-by-step explanation:

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a