if a ball is thrown from a height of 2 meters, the height of the ball, in meters, after n seconds can be modeled by the expression -4.9n^2+20n+2 . What is the height of the ball after 4 seconds?

Adaylily farm sells a portion of their daylilies and allows a portion to grow and divide. the recursive formula an=1.5(an-1)-100 represents the number of daylilies, a, after n years. after the fifth year, the farmers estimate they have 2225 daylilies. how many daylilies were on the farm after the first year?

What is not true about kl and mn? what is mn? (show your work)

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?