Jenna has a bag that contains 7 red marbles and 25 blue marbles. she selects a marble at random, and then, without replacing the first one, selects another marble at random. what is the probability that jenna selects a blue marble and then a red marble? round your answer to the nearest percent. p(blue and red) ≈ %

To keep cylindrical tanks from tipping over, a designer is planning to enlarge the original area of the base by 50%. the new tank should have the same volume as the original. how should the designer change the height of the tank? a: make it 50% taller than the height of the original tank. b: make it 6623% taller than the height of the original tank c: make it 3313% shorter than the height of the original tank d: make it 50% shorter than the height of the original tank.