Rick has 3 bills and 4 coins in his wallet. the coins and bills total $12.35.Rick has no half-dollars. what coins and bills does Tick have?

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?