Joleen buys a box of 15 candy bars for 10 dollars. She then sells those candy bars to her friends at school for 2 dollars each.
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So.... notice the picture below
now, we know what the "height" or "altitude" is
now, we also know the perimeter is 18cm
so, k + k + b = 18
or 2k + b = 18
thus
so... one can say that
and you can simplify it if you wish.. not sure you have to
now, we know what the "height" or "altitude" is
now, we also know the perimeter is 18cm
so, k + k + b = 18
or 2k + b = 18
thus
so... one can say that
and you can simplify it if you wish.. not sure you have to