Final answer:
To find the number of rows in Frank's bookshelf, divide the total height of the bookshelf by the height of each row. There are 12 rows in Frank's bookshelf.
Step-by-step explanation:
To find the number of rows in Frank's bookshelf, we need to divide the total height of the bookshelf by the height of each row. Frank's bookshelf is 2 meters high and each row is 0.18 meters high. So, we divide 2 meters by 0.18 meters to find the number of rows. The calculation is:
2 meters ÷ 0.18 meters = 11.11
Since we can't have a fraction of a row, we round up to the nearest whole number. Therefore, there are 12 rows in Frank's bookshelf. Option D, 12, is the correct answer.