Step-by-step explanation:
This expression is in its simplest form.
We can only expand them:
-2x + 7 = 3x - 5x + 7
-2x + 7 = x - 3x + 9 - 2
-2x + 7 = -x - x + 3 + 4
....
Answer:
9) 21
10) 24
11) 14.6
Step-by-step explanation:
Literally just add up all the sides.
Answer:
160cm^3
Step-by-step explanation:
5 x 4 x 8 = 160cm^3
Step-by-step explanation:
