I will literally love u if u help me with this. ahhh pls help asap i will give brainliest

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?

Consider the first four terms of the sequence below. what is the 8th term of this sequence?

Can you divide 25 into 4 equal groups? explain why or why not.