PLZ HELP ME WILL GIVE BRAINILEST TO THE FIRST PERSON WHO ANSWERS;) Which expression is shown by the model?
Answers:
A. 28 + 14 = 7 (4 + 14)
B. 28 + 14 = 4 (7 + 2)
C. 28 + 14 = 4 (14 + 28)
D. 28 + 14 = 7 (4 + 2)

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:

Icould really use some with this question.

What is the arc length of the subtending arc for an angle of 72 degrees on a circle of radius 4? o a. 8a oc. 16 t d. 8