ABC PrintShop De-lux has fixed costs set at $400 per month. The cost of the labor, paper, and ink to print one sheet of paper is $0.12. They charge customers $0.25 per page. 1) Write a cost equation for ABC Print Shop De-lux

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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.

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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i know the point slope is y= 1/11x-46/11