help with the yellow questions PLEASE im failing math because im stupid. (add how you got answer) I promise i give brainliest

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

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

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17