The circumference of a roll of party streamers is 10 inches. The circumference decreases by 4 inches after you use the streamers to decorate for a holiday party. Find the diameter of the roll after the decrease. Round your answer to the nearest hundredth. I'll also give along with 10 points!

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:

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

If you answer 2+2 you will get over 80 points