Write two expressions (with at least two terms each) that when added together have a sum of -4n + 6

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?

You work in a hospital that has 9 floors. you need to see 3 patients on each floor. how many patients do you need to see in all?

Here are the 30 best lifetime baseball batting averages of all time, arranged in order from lowest to highest: 0.319, 0.329, 0.330, 0.331, 0.331, 0.333, 0.333, 0.333, 0.334, 0.334, 0.334, 0.336, 0.337, 0.338, 0.338, 0.338, 0.340, 0.340, 0.341, 0.341, 0.342, 0.342, 0.342, 0.344, 0.344, 0.345, 0.346, 0.349, 0.358, 0.366 if you were to build a histogram of these data, which of the following would be the best choice of classes?