What are the domain and range of f(x)=−1/5(x−16)2+49?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Jose is going to use a random number generator 500500 times. each time he uses it, he will get a 1, 2, 3,1,2,3, or 44.

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$