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1: let v= -7i+4j, and w= -i-3j. find 3w+7v. 2: The video store owner has determined that the cost C, in dollars, of operating the
1: let v= -7i+4j, and w= -i-3j. find 3w+7v.
2: The video store owner has determined that the cost C, in dollars, of operating the store is approximately given by C(x)=2x^2-32x+540, where x is the number of videos rented daily. find the lowest cost of the nearest dollar.
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