It is 20+20+40+40= 120ft if you dont want decimals
Answer:third option
Step-by-step explanation:
I just did it
-9x(5-2x)Mutltiply the number outside of the parenthesis with the numbers inside the parenthesis
Final Answer: -45x+18x^2
This answer can no longer be simplified.
There are 6 different combinations of 2 books from the group of 4 that he could choose to do.
Let's say all of the books were letters.
Books a, b, c, and d.
Different combinations include:
ab, ac, ad, bc, bd, and cd.
