Lung &bone&liver cancer will chemo benefit a 72 yr old women?

Maybe: Chemotherapy makes some people live longer or even feel better. But it depends on general state of health, number of prior treatments and type of tumor.

Depends: If this is oat-cell lung cancer metastatic to bone and liver, you owe it to yourself and those you love to accept the few months to a few years that a little gentle chemotherapy will give you. If you have some other tumor, talk with your physician about what you want. Best wishes.