Sam's grades
type grade
quizzes 73%
tests 87%
homework 92%
final exam 90%

sam's grades are shown in the table. the teacher calculates the overall grade as follows: quizzes and tests are each 30% of the overall grade, homework is 15%, and the final exam is 25%. what is sam's overall average?

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Need on this geometry question. explain how you did it.

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a