What is 0.36 (6 is repeating) expressed as a fraction in simplest form?

Which of the following is the formula for the sequence graphed below

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

Solve for n? [tex]z = \frac{3}{4} mn[/tex]