с одной станции в противоположных направлениях отправились два поезда один со скоростью 72,3км/ч а второй 65,7 км/ч какое было расстояние между ними через 8, 6ч?
как решить?
помогите пожалуйста​​

нужно оставьте вопросы к следующим предложениям.

1. This park is fine. 2. These little boys are very noisy. 3. Her dress

is grey. 4. They often sit in the garden. 5. She has a new hat. 6.Tom likes

this girl. 7. They eat three times a day.

и сделать предложения отрицательными:

1. He is a nurse at a hospital. 2. My friend and I often go to the

cinema together. 3. We have many books in our library. 4. She has

much time to spend in the country. 5. Ann plays the piano every day. 6.

He knows German and French.

a) do … live

c) does… live

b) are… live

d) live

a) Is ... go

c) Do ... go

b) Does ... go

d) Go

a) not understand, don’t know

c) don’t understand, don’t know

b) don’t understand, not know

d) doesn’t understand, doesn’t know

a) help, walks, water, clean

c) help, walks, water, cleans

b) helps, walks, water, clean

d) help, walks, waters, clean

a) not see

c) don’t see

b) doesn’t see

d) see not

a) isn’t smoke

c) don’t smoke

b) doesn’t smoke

d) not smoke

a) finish

c) finished

b) finishes

d) was finish

a) not helped

c) didn’t helped

b) didn’t help

d) don’t help

a) getted

c) got

b) goted

d) geted

10. … your finger?

a) How have you cut

c) How did you cut

b) How you cutted

d) How you cut

11. Jack … to remember what he had done last April.

a) was tried

c) tryed

b) tried

d) tryd

12. He … Mary and … in love with her at first sight.

a) met, fell

c) meeted, fell

b) had met, falled

d) meeted, falled

13. I'm tired. I … to bed.

a) I go

c) I’m go

b) I’d go

d) I’ll go

14. We don’t know their address. What …?

a) … are we do

c) …shall we do

b) … were we do

d) … t was we do

15. Our test … long.

a) isn’t take

c) willn’t take

b) doesn’t take

d) won’t take

16. Dad … Mag a personal computer, …?

a) will present, won’t he

c) present, will he

b) presents, didn’t he

d) presents, is he

a) won’t come … are

c) won’t come … will be

b) doesn’t come … will be

d) doesn’t come … are

18. We … our lesson  when you … your seats.

a) start … will take

c) start … take

b) will start … will take

d) will start … take

19. We … English at the moment.

a) are speaking

c) is speaking

b) speak

d) speaks

We’ve been touring for last month. какая тут ошибка?