The table show the total distance d, in kilometers, a truck traveled after t hours.
time in hours (1)
distance in kilometers (d)
100
200
300
which equation shows the relationship between d and t?
d=t+300
d=t+100
d=3001

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?