Okay, so lets say a teacher wants to divide her class of 30 students into 10 groups, but not necessarily of equal size. what are some of her choices?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?

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?