What is the following difference? 56.4 – 27.39

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Louis wants to carpet the rectangular floor of his basement the basement has an area of 864 square feet the width of the basement is 2/3 its length what is the length of lewis's basement

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12