Choose the solution(s) of the following system of equations
x² + y² = 6
x² - y=6
no solution
(50)
(15.1)
(5-1)
infinitely many solutions
(-5,1)
(15.-1)

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?