If y =9x^4 - x^3 / x^2 , then dy/dx is:
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Ineed here’s a picture of the question

Situation: find the age of the skull to the nearest year, enter the correct answer. a hiker in africa discovers a skull that contains 32% of its original amount of c- 14. done n = noekt 00000 no = inital amount of c-14 (at time t = 0) n = amount of c-14 at time t k = 0.0001 t = time, in years

Find an equation of the line that has intercepts (1,0) and (0,4).