What describes job surplus

The chanleys drove 112 miles ( or 7) on 4 gallons of gas. at this rate,how many mikes will they drive on 8 gallons

30 a town is built on the banks of a small lake on the edge of a desert. after some time, the townspeople discover that water from the lake has become too polluted to use. describe one way that the lake may have been contaminated by the actions of the townspeople, and explain how the townspeople can remediate this problem.

If i don’t finish my flvs work will i get held back