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Problem of the Week
Problem A
Fund Raising

Flynn’s class is raising money for a tree-planting charity by recycling electronics. They have found a local company that will give them \(\$5\) for each pound of cell phone e-waste and \(\$2\) for each pound of computer e-waste.

The school has gathered the following electronics for recycling, but has weighed them in grams instead of pounds.

Cell Phones Computers
\(10\) uPhones: \(200\) g each \(5\) Bonobo laptops: \(800\) g each
\(5\) Mixel phones: \(100\) g each \(7\) uPads: \(500\) g each

Knowing that \(1\) pound is about \(454\) g, estimate how much money Flynn’s class will make. Justify your answer.

Themes: Geometry & Measurement, Number Sense