Rounding me to the nearest ten, hundred, thousand, or ten thousand will give you the same number. four of my digits are the same. the sum of all five of the digits is 39

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?

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then, the two had the same amount of money. how much money did each have originally?

In a rectangle klmn, km = 6x + 16 and ln = 49. find the value of x