PLEASE HELP ASAP i’ll mark brainliest

What are the domain and range of the function? f(x) = -4 (sqrt)x

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq

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?