The book fair had a sale where 6 books were $20.40 or 8 books were $28.00. Which is the better deal?

Answer this question, only if you know the answer. 30 points and brainliest!

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

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?