At 3 o'clock in the morning, John has already slept for four hours. As long as his sleep continues, we can expect an increasing occurrence of

Carlos has 4/5 of a tank of fuel in his car. he uses 1/10 of a tank per day. how many days will his fuel last?

I'm terrible at math any here is appreciated.

The constitution gives congress the power to create federal courts lower than the supreme court higher than the supreme court equal to the supreme court, unaffected by the supreme court.