15 stacks high or 405 if done 27 times
Answer:
15 stacks
If she does it for 27 more times it will be
405
one solution
Step-by-step explanation:
40%
0.4=0.40
0.40×100
=40%
-x - x - 3x - 4x
Let's start from left to right. First do -x - x, which is -2x.
-2x - 3x - 4x
Now do -2x - 3x, which is -5x.
-5x - 4x = -9x
-9x is your answer.
