What is the length of side a, in centimeters, on the reduced trapezoid?

answer: f = 32.2m

step-by-step explanation: that is the answer

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.

answer: i dont know but if you try hard you will get it right : )

step-by-step explanation: