Answer:
neighbor
Step-by-step explanation:
Answer:
B.
4x+9 = 2x-1
Step-by-step explanation:
15x-10=20
+10 +10
15x=30
\15 /15
x=2
you add 10 to both -10 (they cancek eachother out) and 20 (equals 30)
Then you divide 30 by 15 (equals 2) and 15 by 15 (they cancel eachother out)
Then you get x=2
Answer:36 maybe
Step-by-step explanation:
4×3=12
12÷2=6
6×5=30
30+6=36
Just subsitute 8 for n
1/2(8)^2-1/2(8)
1/2(64)-4
32-4
28
D
