Theo received a quote to move his belongings to his new house. The estimate from the
mover is $600 for 4 hours of packing and 6 hours of moving. Theo thinks he can reduce
his cost by doing some of the packing and moving himself. If he does, the cost will
decrease to $370 for 2 hours of packing and 4 hours of moving. If the mover charges a
set hourly rate for packing and another set hourly rate for moving, what are these hourly
rates?