Hello,
Let's assume n the number searched.
nine less 3 times n is written 9-3n
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➷ Work out the cost per gram
60/125 = 0.48
It costs 0.48 cents per gram
Multiply this by 100 to get the answer:
0.48 x 100 = 48
It would cost 48 cents
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➶ Hope This Helps You!
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The slope is mx+b so find two points in the graph and use y-rise/x-run
-2x-11 is equivalent to 3x-4-(5x+7)