Find the coordinates of the vertex of the following parabola algebraically. Write your answer as an (x, y) point.
y = -4x^2+24x-40

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At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

Use the zero product property to find the solutions to the equation (x+2)(x+3)=12