What is 3/5 times 6/5

What is the square root of 45? (step by step working plz)

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.

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years