.

9. Determine the unionXY. Express them in interval notation. X= {x/x>-17} andY= {x/x}

A.(-10, -17]

B.{ }

C.(-, -10] (-17,)

D.All real numbers

7. Find the union or intersection as indicated for the given sets. A = {x | x the natural numbers and x < 4}, B = {x | x the integers and -2 < x < 2} Find A B.

A.{0, 1}

B.{-2, -1, 0, 1, 2, 3, 4}

C.{-1, 0, 1, 2, 3}

D.{1}

E.No answer text provided.

4. Write the requested inequality. The cost for a long-distance telephone call is $0.33 for the first minute and $0.16 for each additional minute or a portion thereof. The total cost of the call cannot exceed. Write an inequality representing the number of minutesm, a person could talk without exceeding.

A m 17

B m 18

C m 16

D m 19