You purchase a car for $40,582 in 2015 that has a history of depreciating at 12% each year. if you want to see the car for no less than $8,000, in what year should you sell?

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?

3x + 4y = 5 x- 3y = -7 solve by substitution

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25