David will take a total of five tests in his math class
this semester. He has already taken three of the tests
and earned scores of 90, 86, and 85. What is the
least possible score David can earn on the fourth
test and still be able to finish the semester with an
average test score of 90 on all five tests? (The test
scores in his math class can range from 0 to 100.)
A. 89
B. 90
C. 92
D. 93
