Что такое метафора пример

Put the verbs in brackets into the Present Simple.
1. Money not always (bring) happiness.
2. His advice usually (help), but this time I don't think I should follow it.
3. The staff (like) to go on holiday all together, so we just close the cafe for a week.
4. The government (be) elected every four years.
5. The food, cooked in this restaurant, usually (give) me a stomachache.
6. Good education (open) all doors.
7. Her luggage (weigh) 30 kilos. That's too much.
8. Congratulations always (make) me blush.

Помогите решить уравнения! (если можно с подробным решением)

1)3cos^2x+0.5sinx=2

2)sin(4x/5+2Пи/3)=  -0.5

Как,имея лишь два сосуда емкостью 3л и 5л,налить из водопроводного крана 4л воды.