The half life of a chemical element substance is 16 days, How long will it takes for the substance to decay from 120mg to 2 mg

What is the least common factor of 6 and 8

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document

Determine the area of a triangle with (see picture below)