Given the data 4, y, 9, 5, 2, 7. Find y if the mean is 5
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Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Find the average rate of change for the given function drom x=1 to x=2

Which expression can be used to find the cost of .75 kilogram of cheese at the price of $6.40 per kilogram?