Freee points who wants it

Given: m∠apc = 27°, m dc = 27° find: m ab

On a test the graders have a mean of 77 and a standard deviation of 8. if we can approximate the distribution of these graders by a number distribution what percent of the students. a) scores higher than 77? b) should pass the test (grades > 60)? c) should fail the test (grades < 60)?

If there's any college students out there can you tell me if algebra is really important in college