Gavin wants to buy a skateboard that sells for 49.99. an advertisement says that next week that skateboard will be on sale for 42.50. how much will gavin save if he waits until next week to buy the skateboard?

The jurassic zoo charges $14 for each adult admission and $5 for each child. the total bill for 77 people from a school trip was $565. how many adults and how many children went to the zoo? i

What is the difference between the predicted value and the actual value

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?