What is the union of C and D?
C. ( 5, 9, 15, 20)
D. (9, 15, 20 )

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

In each diagram, line p is parallel to line f, and line t intersects lines p and f. based on the diagram, what is the value of x? ( provide explanation)

Kelli swam upstream for some distance in a hour.she then swam downstream the same river for the same distance in only 6 minutes.if the river flows at 5km/hr, how fast can kelli swim in still water?