10/12 divided by ?/? = 5/6

Sum is 17 and their difference is 3

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

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 ?