m 51/ V 38

A LOT OF MATH PROBLEMS ARE FROM JJ.

RC:

1. SYMBOL ECONOMY, i am sure that I made one mistake, the question is about what is correct according to the article, should choose A: before 1985, ... experienced a large amount of trade and ...

2. mercury ice cap

3. girlscout

4. CEO compensation and tenure

SC. i remember one sentence, which is my 40th prolem. ..... the acid rain is as widespread as the winds that disperse it.

B. spreads as wide as the winds dispersing it.

C.

D.

E. disperses widely as the winds spread it.

I chose E, but really not sure

CR

1. roller, G-force

2.weaken: the tuition cost of colleges increases faster than the inflation rate, because the production cost can be reduced without affecting the quality, but education quality would be negatively affected if cost is reduced.

3. explanation: most ads are focus on people under50. however, people above 50 watch as much tv as others do and spend more money on most commonly advertised products.

GOOD LUCK TO ALL OF YOU