By Using the table, at how many hours of service do the
repair services cost the same? Write and solve an
equation to find out.
Computer Repair
Service
Cost
ABC Tech
$75 service charge plus $50 per hour
Tech Squad
$25 service charge plus $70 per hour

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.  

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled