Number 13 is what I need done
1 answer:
Instead of using an = sign we use
becuase its less than or equal to 100 dollars.
The equation of the line is y=10x+7
sub in 100 for y and the inequallity sign
10x+7
100
solve so x is isolated
10x
93
x
9.3
technically the answer is 9 because you cant buy a fraction of a CD
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