Identify the dependent and independent variables. then write an equation to represent the relationship between them.
kevin will make some money babysitting today. he owes his brother $10. the amount of money he will have left m is equal to his babysitting earnings e decreased by 10.
dependent variable
independent variable
equation:

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?