44. In each year of 1983 and 1984, the total number of cars sold in the United States was 654.38+200,000 more than the previous year.

1983 is the percentage increase in the number of cars sold compared with 1982. 1984 is the percentage increase in the number of cars sold compared with 1983.

45. Polygons are equilateral and equilateral, and TWOR is a rectangle.

x/y & amp；

1

12. A rectangular label is attached to a straight cylinder with radius r. The label surrounds the cylinder without overlapping, with a width of w and an area equal to the area of the bottom of the cylinder.

w & amp

r

Is that so? Just a little ugly.