Which expression is equivalent to 1
2
(
4
x
+
8
)
?

A.
x + 4

B.
2x + 4

C.
2x + 8

D.
4x + 4

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

Find the cosine function that is represented in the graph.