On two of Mark's math tests, he scored 75 and 83. Mark wants to have a mean score of 84. What does Mark have to score on his next test to have a mean of 84?

Y< 2x-3 y? mx+3 which value of m and which symbol result in the system of inequalities shown above having no solution? a) m=-2; > b) m=-1/2; < c) m=2; > d) m=2;