The number of different cars sold in some country rose from 205 in 1997 to 277 in 2007. Find the percent increase. Round to the nearest whole percent.

We are finding slope:

change in y / change in x

277 - 205 / 2007 - 1997

72 / 10

7.2

~ 7

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's