You want to buy some wallpaper to decorate your kitchen. a roll of wallpaper is on sale for $10. write and solve an inequality to determine how many rolls of wallpaper you can buy and spend no more than $50.

Let x be the number of rolls of wallpaper that you can buy to decorate your kitchen. Since each roll costs $10, the total cost for x rolls is 10x. This value should be not be more than $50. The inequality that is best described by the condition is, 
                                              10x ≤ 50
Solving for x gives an answer of x ≤ 5.