Answer:
从 1 到 20 有 8 个素数。它们列在下面：2、3、5、7、11、13、17 和 19。
You can divide both the top by 5
10/5 = 2
15/5 = 3
Therefore 10/15 is equivalent to 2/3
So 0.081 x=38,900 so x (#sold to date) = 480,247 would be the answer.
Answer:
the answer is -16+37i
Step-by-step explanation:
Multiply the 2 by 3 to get 6 square yards
Then multiply that by three to get 18 square feet
Finally times 18 by 1.5 to get 12 tiles
Therefore 12 tiles are needed to cover the floor.
