Raj is studying art at the local community college. He wants to take a stained glass art class that will count as 4 credits toward his degree. The college charges d dollars for each credit and a one-time fee of $150.00 for supplies. Raj determines that $540.60 will be the total cost of the class. Write an equation he can use to find d, the amount the college charges per credit.

How much does the college charge per credit?

150+4d=540.60         d=97.65

Step-by-step explanation:

4d=390.6

390.6/4=97.65

d=97.65

78.59 is the mean

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.