What is the size of angle x ?
And give a reason

Which value would be a solution for x in the inequality 47-4x< 7

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?

Find the maximum value of p= 4x + 5y subject to the following constraints :