u have to answer all three all the choices are the same please help 1 hour to complete

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

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 ?

What number is 7 units left of -15?