23.
3•(-3)^2-4
3•(-3)^2
Exponents first.
-3^2=9
3•9=27
27-4= 2:.
Part 1.
A is.
45 and 34 wood pieces left
B is.
It takes 11 cause 100-89=11 and 11+89=100 and it keeps subtracting 11.
C is.
I dont understand the question(sorry)
D is.
At least 9 shelves,
100-11=89
89-11=78
78-11=67
67-11=56
56-11=45
45-11=34
34-11=23
23-11=12
12-11=1
And you would have 1 wood piece remaining!!
Answer:
2x+18
Step-by-step explanation:
I hope this help.
X equals 41 tell me if you want me to explain how I got it
