I don't get how this question on the Mandelbrot set is possible:

You are to develop a spreadsheetto generate the first20elements in the sequence for any value ofzandc.

Design your spreadsheet with column headings that include the term number, real component of each term, imaginary component of each term in the sequence, and the modulus of the complex number.

Or this question on the Koch snowflake, where stage 0 is the equilateral triangle:

Calculate the areas for stages 0 to 4 of a snowflake that starts with an equilateral triangle of side 1 unit.

Show that the total area of the Koch snowflake will never exceed 8/5 of the original area.

Can someone show me how to do these? Thanks.