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Find the slope of the linear function f(t)=(3-4t)/5.

Find the slope of the line 3x + 9y - 7 = 0.

There are 850 Douglas fir and ponderosa pine trees in a section of forest bought by Sawz Logging Co. The company paid an average of $300 for each Douglas fir and $225 for each ponderosa pine. If the company paid $217,500 for the trees, how many of each kind did the...