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The ratio of two numbers is 5 to 4. the sum of the numbers is 99. what number is the greater of the two numbers?

Is the square root of 4 plus the square root of 16 rational?

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?