William earns $13,644.80 per year, and has his federal taxes withheld from each weekly check. in addition, total of $53.60 is deducted from each check for social security and medicare. how much is his net pay for each weekly check?

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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