To save for a car when he turns 18, pascale deposited $500 each year into a savings account with a 7.5% interest rate compounded annually. using the formula, what is the value of the account at the end of the fifth year? $3,071.92 $3,122.00 $3,851.77 $4,140.65

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?