Cho hàm số f(x) = 4-3x. Khẳng định nào sau đây đúng:

 A. Hàm số nghịch biến trên \(\left(\frac{4}{3};+\infty\right)\)                                  B. Hàm số đồng biến trên \(ℝ\)
 C. Hàm số đồng biến trên \(\left(\frac{3}{4};+\infty\right)\)                                 C. Hàm số đồng biến trên \(\left(-\infty;\frac{4}{3}\right)\) 

Part 1:You will hear two people talking about an advertisement about volunteers. Listen and complete the sentences below. Write NO MORE THAN THREE WORDS AND/OR A NUMBER for each answer.

VOLUNTEER SCHEMES

-  Scheme 1: Volunteers work in an office, helping with maintaining database of members

-  Scheme 2: Volunteers help with raising money, 1.____________________ and sending out letters

-  Scheme 3: Volunteers help old people with different things, (e.g. doing the shopping for them, but not dealing with 2.____ _______________________

Application process

With the application, a CV and the names of 3.___ __________________________ are needed.

Volunteers have an induction course which lasts 4.___ ____________________________.

The application can be completed and submitted online.

The minimum volunteering hours per week is 5.___ _______________________.