Hal earns a B on 75% of his tests. He divides a spinner into 12 equal spaces to model the grades he earns on his tests, with nine of the spaces representing a B. Which statement about his model is true? A.
His model can be improved the most by using eight of the spaces to represent a B.
B.
His model can be improved the most by dividing the spinner into 15 equal spaces.
C.
His model can be improved the most by using every third space on the spinner to represent a B.
D.
His model cannot be improved.

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:

Alogical argument that is presented in graphical form using boxes and arrows is called?

For g(x) = 5x - 3 and h(x) = [tex]\sqrt{x}[/tex], find (g · h)(4)