Evaluate the limit, if it exists. (If an answer does not exist, enter DNE.) lim x→−5 (x + 5)/ (x^3 + 125 ).

Ihonestly don’t understand this at all

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer