hi I need help with calculus

A ball is dropped from a 10 meter height, bounces back to 75% of its original height, and then bounces again to 75% of that height. How much total vertical distance D does the ball travel between being dropped and the third time it touches the ground? A student has given a final answer of D = -0.25 m/s. How can you tell, just from the student's answer, that the answer is not correct? (Choose ALL correct answers.) O The answer should be a whole number, not a decimal. O The sign of the answer should be positive, not negative. O The answer is too small in magnitude, it should be much larger. O The answer is too large in magnitude, it should be much smaller. O The units in the answer are incorrect.Problem: A ball is dropped from a 10 meter height, bounces back to 75% of its original height, and then bounces again to 75% of that height. How much total vertical distance D does the ball travel between being dropped and the third time it touches the ground? A student gives the following reasoning to find an approximation: Lower bound: The ball travels 10 meters before the first bounce, so 10