i need help to solve this 0.3(0.3x+0.8<-0.3

Answer 1

I interpreted the inequality as 0.3(0.3x + 0.8) < -0.3
What we'll do here is to solve for x, like what we do in equations:
0.3(0.3x + 0.8) < -0.3
0.09x + 0.24 < -0.3
0.09x < -0.3 - 0.24
0.09x < -0.54
x < -0.54/0.09
x < -6

Hope this helps~ :3