# 1.The ratio of 3:18:30 is expressed in its simplest form. 2. A weighted average is calculated the same way as a normal average.  3. McKay Company sells lamps and they have decided that they would make the price of their lamps 30% more than what it cost the company to make the lamp. So if the cost to make the lamp was \$36.50 what would be the selling price of the lamp?

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1.The ratio of 3:18:30 is expressed in its simplest form.

2. A weighted average is calculated the same way as a normal average.

3. McKay Company sells lamps and they have decided that they would make the price of their lamps 30% more than what it cost the company to make the lamp. So if the cost to make the lamp was \$36.50 what would be the selling price of the lamp?

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Hi there! You seem to have posted 3 different questions.  So, we will be answering only the first one. If y...

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