Roger took a road trip. He drove for 30 minutes at 60 miles per hour. Then he drove for 45 minutes at 45 miles per hour. How far did Roger drive? Round to the nearest mile.

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15