What is the value of v

Which set represents the range of the function shown? {(8, 2), (6, 5), (4, 7), (11, −2)} {−2, 2, 5, 7} {4, 6, 8, 11} {(2, 8), (5, 6), (7, 4), (−2, 11)} {−2, 2, 4, 5, 6, 7, 8, 11}

Select the number of ways in which a line and a circle can intersect

What percent of 18 is 24? and plz explain thx.