Answer:
3
Step-by-step explanation:
by looking at the table, see when f(x)=0.
you can see that when f(x)=0 x=3
19? 21?
57/41
41 * x = 57
x = 57/41
-x/2+4<12
-4 -4
-x/2<8
*2 *2
-x<16
/-1 /-1
x<-16
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hope it helps