If a(x)=3x+1and b(x)= square root of x-4, what is the domain of (b•a)(x)

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Apool measures 12.3 feet by 16.6 feet. if the longer wall of the pool has a diagonal of 17.8 feet, what is the volume of the pool? (round to nearest tenth)

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?