I need help with algebra and could you pls show the steps

Find the actual dimensions of the box. the side length are in meters and integers. the surface area of the box is 104 m2 and volume of the box is 60 m3.

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents