A plumber charges $25 for a service call plus $50 per hour of service write an equation to represent the cost of hiring this plumber

$(25 + 50h)

Step-by-step explanation:

Cost = 25 + 50h

Where 'h' is the number of hours of service

8 hours of work: h = 8

Cost = 25 + 50(8) = $425

10 hours of work: h = 10

Cost = 25 + 50(10) = $525

the answer is c. 23/3

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.