Answer:
6.4
Step-by-step explanation:
You could use a calculator
Or....
Do 345.6/54 and get 6.4
26-4s=9s
26-(4s-9s)=0
26+5s=0
5s=-26
ans: s= -26/5
-3r+10=15r-8
-3r-15r=-8-10
-18r=-18
18r=18
ans: r=1
-9(t-2)=4(t-15)
-9t+18=4t-60
-9t-4t=-60-18
-13t=-78
13t=78
ans: t=26
THERE U GO! :D
non linear graph