The data set shows the ages of people riding a bus. What is the mode for this data set?

18 16 11 45 33 11 33 14 18 11

A. 11, 18, and 33

B. 17

C. 21

D. 11

Which number produces a rationale number when multiplied by 1/5

Which of the following is the true for f(x) = 5cos

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?