Which side lengths below DO NOT produce a right triangle? 5,12,13
3,6,9
13,84,85
9,40,41

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

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?

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