Step-by-step explanation:
![= 4 + ( - 3) - 2 ( - 6)](https://tex.z-dn.net/?f=%20%3D%204%20%2B%20%28%20-%203%29%20-%202%20%28%20-%20%206%29)
here ( + ) × ( - ) = ( - )
![= 4 - 3 + 12](https://tex.z-dn.net/?f=%20%3D%204%20-%203%20%2B%2012)
![= 4 + 12 - 3](https://tex.z-dn.net/?f=%20%3D%204%20%2B%2012%20-%203)
![= 16 - 3](https://tex.z-dn.net/?f=%20%3D%2016%20-%203)
![= 13](https://tex.z-dn.net/?f=%20%3D%2013)
20 and 10, 20 is 2 times 10 and if you add them together its 30
About 18 inches / 1 foot and 6 inches
If hair grows about 6 inches every year, and we want to find out how much will grow in 3 years, we multiply.
6 x 3 = 18 inches
Then we can simplify it because there are 12 inches in a foot
18/12 = 1 6/12
17 if you maintain the ratio of 2:1 for bread and cheese, but you would get a remainder of 7 cheese slices. You could, however, cut up the extra pieces of cheese and add ~0.41 slices of cheese to each sandwich, which would melt into the rest of the cheese if you are grilling the sandwich. Otherwise, it's just an extra chunck, which is perfectly fine.