Write an expression using fractions to show how to determine the amount that each person will pay. Then calculate each persons contributions showing all steps in long division

My chart
Philip 69.97
Tom 30.97
Austin 37.97
Robert 22.27
total amount 221.18

$9.41

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.