Answer:
i have no idea what it is so good luck
Step-by-step explanation:
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.
Answer:
Nope!
Step-by-step explanation:
It's linear, because it has a continuous pattern. Look!
x values: 6, 7, 8, 9
y values: 4, 2, 0, -2
X values: We add 1 each time
Y values: We subtract 2 each time
I hope it helps!

4 1/2 yards= 162 inches
hope this helps