Anyone know how to do this ?

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

Adozen bananas weigh 3 pounds how many ounces does 1 banana weigh