a class of 10 boys and 20 girls took a test. the mean score for the boys was 48 and the mean score for the girls was 60. what was the mean score achieved by the class?

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

The diameter of a ball is 8 in. what is the volume of the ball? use 3.14 for pi. enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9