。。。Ask for some homework, I hope to help you, and the reward will be added, don t spray me

10) during the weekend i may not look that nice but i'll be very comfortable

11) i may be spending the vacation in hongkong

12) pour the milk into the blender

13) how many cheese do we need

14) how many tomatoes do you need?

15) do you know how to plant trees?

16) add some butter on the bread

17) do you like lettuce in your sandwich?

18) the house is full of people

19) the ground is covered in snow

I'm from abroad and my English is pretty good, I hope it helps.

It is equal to 1 times 2 times 3 times 4 times 5 times 10 times 9 times 8 times 7 times 6 times 5 times 4 times 3 times 2 times 1.

3. The first health district.

Second Health District.

Third Health District.

Fourth Health District.

Within is both a multiple of 3 and a multiple of 5:

A: This batch of bread has a maximum of 45 pieces and a minimum of 15 pieces.

The number of breads does not exceed 50, 3 in a bag or 5 in a bag are just finished, the minimum number is the least common, which means the least common multiple of 3 and 5, that is, 15, and the maximum number is that this number is doubled, that is, 45,

In total... Used to go.

The answer is: twenty kilograms.

Divide twenty by three-fifths.

With 3 5, there are 2 5 corresponding to 12 kg. That is, it turns out that 12 divided by 2 5 equals 30 kilograms.

Idea: Suppose two cars are driving at a constant speed.

1.When the two cars met for 8 hours, they walked x meters and y meters respectively.

Total mileage, 3At this time, the speed of the fast train is x 8, the speed of the slow train version is y 8,4, the mileage of the express train for 10 hours is 10x 8, and the mileage of the slow train for 10 hours is 10y 8

5.The total mileage of the 10-hour express car plus the total mileage of the 10-hour slowdown car is 800 meters, so x+y-10x 8+x+y-10y 8=800, so (x+y)=6400 6 meters.