The Consumer Electronics Show (CES) reports that the HP Spectre laptop computer starts at $995.99 for a base configuration. The model displayed at its recent show costs $1,369, $125 more than the comparable 13-inch Apple MacBook
Air. If Computers-R-Us buys the HP Spectre at the show with 3/15, net 30 terms on August 23, how much does it need to pay
on September 6? Use days in a year table. (Do not round intermediate calculations. Round your answer to the nearest
cent.)

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?