There are 5 red marbles, 15 blue marbles, and 5 green marbles in a bag. you reach in and randomly draw a marble, replace it, and draw another marble. what is the probability that the first will be red and the second will be blue?
80%
20%
12%
8%

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w