Advantage airlines has a set fee for each checked bag, plus an additional charge for each pound the bag weighs. the cost is a linear function of weight what is the rate of change of function

step-by-step explanation:

a rhombus is a parallelogram enjoying his symmetry.

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.

the answer is d

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