Line segment bd is a diameter of circle e. what is the measure of arc bc? 39° 78° 102° 129°

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?