2) Describe how you know, based on the graph that the relationship is proportional. 3. Write an equation that describes the relationship between the number of ice cream cones, n , and the cost of ice cream cones, c.

4. Describe how you can use the equation to find any cost of ice cream cone, given the number of ice cream cones.

Convert 16 yards to feet use the conversion rate 3 feet = 1 yard

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?