A coach makes 30pounds of a chalk mixture by mixing 25Pounds of chalk with 5 pounds of sand what fraction of the chalk mixture is sand

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?

The graph shows the distance kerri drives on a trip. what is kerri's speed?

Find the arc length of the semicircle. 7the grade