Find the range of this graph (ignore my answer)

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

An internet company charges $8.95 per month for the first 3 months that it hosts your web site. then the company charges $11.95 per month for web hosting. how much money, in dollars, will the company charge for 8 months of web hosting?