hellokitty1647
29.09.2019 •
Mathematics
The cost c of making n watches is represented by c= 15n + 85 . how many watches are made when the cost is $385
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Ответ:
12x+16x^2
Step-by-step explanation:
3x*2+6x+4x*4x
3x*2 = 6x
4x*4x = 16x^2
6x+6x+16x^2
12x+16x^2