I just need answers to the odd numbered questions I would really appreciate any help thank you

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

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3