Answer:
23) n = 2
24) x = -7/2
25) t = 31/12
26) x = -2
27) x = 12/5
Step-by-step explanation:
27 hours
y=3-47.5
I did it in my notebook.
y = 1.8
y=kx
4=k(20)
k=
When x = 9: