Which set of transformations is needed to help determine whether parallelogram KLMN is congruent to parallelogram PQRS?

c is the correct answer

step-by-step explanation:

i will with my problems and all the other things that need to   be on by the way

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.

i think the answer is 90 hope this