A bird is flying upwards such that its height in feet after t seconds is given by h=4t. at an instant the bird passes the height of the ball being held out the window, the ball is thrown upward with an initial velocity of 80 feet per second. the height in feet of the ball after t seconds is given by h=-16t^2+80t. find the time it takes for the ball and the bird to reach the same height

Two groups of students were asked how many hours they spent reading each day. the table below shows the numbers for each group: group a 1 2 1 1 3 3 2 2 3 group b 3 2 3 2 2 2 1 1 2 based on the table, which of the following is true? the interquartile range for group a students is 0.5 less than the interquartile range for group b students. the interquartile range for group a students is equal to the interquartile range for group b students. the interquartile range for group a employees is 0.5 more than to the interquartile range for group b students. the interquartile range for group a employees is 1 more than the interquartile range for group b students.