What is 66% of 350? helpp

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

How do i do this activity, is appreciated