IM SO CLOSE TO FAILING RN ITS NOT FUNNY

Use set buikder notation to represent the following set: {, -2, -1, 0}

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?