On a piano achievement test, the final score is made up of 65% performance, 30% sight reading, and 5% written theory. John earne
d an average score of 75 on performance, 90 on sight reading, and 100 on written theory. What was John's final score for the piano achievement test? Enter your answer as a decimal in the box.
<em>The average velocity of the object is multiplied by the time traveled to find the displacement. The equation x = ½( v + u)t can be manipulated, as shown below, to find any one of the four values if the other three are known.</em>
