Determine if the correspondence is a function Domain - a set of prices
Correspondence - items purchasable at that price
Range - a set of items
Is this correspondence a function? ​

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

With finding limits of multi variable !

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?