Answers created by Joel E.

Answers created by Joel E.

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A cookie recipe for 60 cookies calls for 4 cups of flour. How much flour is needed to make 90 cookies?
How do you simplify $\frac{\frac{r + s}{x^{2} - y^{2}}}{\frac{{(r + s)}^{2}}{x - y}}$ $((r+s)/(x^2-y^2))/((r+s)^2/(x-y))$ ?