math

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Suppose that we strike a bargain, and we agree that in this chapter, for every problem you do right, I will pay you $.86 and that for every problem you do wron, I will fine you $.47. After 28 problems, you have a nice sum of $9.45 in your pocket (and I am looking for a way out of the deal). How many problems did you do correctly?

.86C-.47W=9.45
C+W=28

for math we are doing proportions and cuostomary mesurments 5 cups is less than or greater than 40 fluid ounces

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