Lúc 6 giờ một ô tô đi từ A đến B với vận tốc 50km/giờ, cùng lúc đó một xe máy đi từ B đến A với vận tốc 30 km/giờ. Biết rằng hai xe gặp nhau 9 giờ 15 phút. Tính:
a. Quãng đường AB dài bao nhiêu ki – lô – mét?
b. Điểm gặp nhau cách B bao nhiêu ki – lô – mét?

mình cần gấp ạ:

PART 4: WRITING (2.5pts)
I/Rewrite the sentences so that they have the same meaning as the original ones. (0,5ms) 1. They will use solar energy to protect the environment.
=>Solar energy
2. We often ride our bike to school.
=>We often go
II/Rearrange the words to make meaningful sentences:(0.5pt)
1. the problem / of/ will be used / to solve / energy shortage / Solar energy
2. keys/ are/ My/ yours/ are/table/ the/ on/./ Where/?/

ax^2+bx^2

Làm thế nào để chống lại lũ ngu?

a)(x+2)(x-1)<0

b)(x+2)(x-3)>0

PART 3: USE OF ENGLISH (2.5 pts)
Choose the word that has a different stress pattern from that of the others.
1. A. abundant
B. different
C. expensive
D. convenient
2. A. energy
B. dangerous
C. pollution
D. plentiful
Choose the best answer for the sentences: 3. I think the mean of transport looks rather weird.
A. usual
B. popular
C. unusual
D. new
4. The city is facing serious
problems.
A. polluted
B. pollution
C. pollute
D. polluting
5. All the slums in this area
for new multi-storey buildings next year.
A. demolished
B. will be demolished
C. will demolish
D. will demolished
6. They prefer to go
their car than
the train.
A. by-on 7. In the green future, vehicles will be powered by
B. in-on
C. by-in
D. in-in
A. solar energy
B. coal
D. petrol
8. A: "I think biogas is renewable." - B: "
A. Me too.
B. No, I don't.
C. Yes, I do.
D. Wow, it's really imaginative. to school on my skateboard.
9. At 7 o'clock tomorrow, you
to work and I
A. cycle / go
B. will cycling/will go C. are cycling/ am going D. will be cycling/will be going
10. The books are all
A. mine
B.my
C. me
D. I