I need help trying to determine the missing angle

How many degrees are there in the central angles in a circle

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

Graph the linear equation. find three points that solve the equation -2y=-x+8 if necessary, replace x with a suitable number in the equation such that it gives you an integer value for y.