A contractor is being paid $35 per hour and his helper is paid $15 per hour. They can install 200 liner feet of shoe molding in an 8 hr. day. What would be the cost per liner foot if the contract only called for 150 liner feet of shoe mold?

A contractor is being paid $35 per hour and his helper is paid $15 per hour. They can install 200 liner feet of shoe molding in an 8 hr. day. What would be the cost per liner foot if the contract only called for 150 liner feet of shoe mold?