
Kenneth S. answered 04/26/17
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Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018
Technically, you did not state the question (to be solved).
Assuming that you want to know how many different answered tests there could be, each question has 4 choices and so that would be 410 which equals 220 = 1,048,576 different ways of answering the test (leaving no questions unanswered).