The sugar sweet company needs to transport sugar to market. the graph below shows the transporting cost (in dollars) vs. the weight of the sugar being transported (in tons).

the picture shows the graph and part, a., b., c, and d.

i have part of it correct but am unsure what is not correct

and btw you to everyone who me

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?