Which is NOT done by a realtor? A. Help buyers find a home they like B. Collect a commission of about 3% of the purchase price C. Approve buyers for a loan D. Negotiate the contract between the buyers and sellers I WILL MAKE BRAINELEST

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)?