What's the inequality for 15x + 21 ≥ 120​

Can some one explain this i got sent this. is this a threat i’m scared

With number 11 ( show how you got the answer)

Which is an accurate comparison of the two data sets? the commute to work is typically shorter and more consistent than the commute home. the commute to work is typically shorter but less consistent than the commute home. the commute to work is typically longer and less consistent than the commute home. the commute to work is typically longer but more consistent than the commute home.