Jasper is planning a kayaking trip on the river. the length of river he plans to navigate is 7.2 miles. at the end of his trip, he checks his watch and sees that it took him 1 hour and 36 minutes. what was his rate of speed down the river?

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:

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

If a is a nonzero real number then the reciprocal of a is