اسحب الإجابة الصحيحة إلى مكانها المناسب. سر سعيد 5 كيلوجراما من وزنه خلال 4 أسابيع ، فكم كيلوجراما خير في الأسبوع الواحد؟

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

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?

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll