Wriye the number that has the same value as 70tens

Two lines parallel to the same plane are parallel to eachother

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 ?

Extra points! find the missing dimension! need asap