If 3r=18, what is the value of 6r+18 ?

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

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 ?

Which diagram shows lines that must be parallel lines cut by transversal?