I think you've got it, I don't know man.
Answer:
YZ= 2.8
Step-by-step explanation:
3n+5=8n-9
-3n -3n
5=5n-9
+9. +9
14=5n
14÷5
2.8=n
its C
(1/2)(n-4)-3=3-(2n+3)
n = 2
but if it is
(n-4)-3=3-(2n+3)
n = 7/3
16
sry im late
...............
48sq^2
(12*8)/2
96/2
48